"Bli-Blitz-Blitzo," Ratburn struggles and begins to raise his voice in anger, "Blitzo, Blitzo, BLItzo! BLTIZO! BLITZO! BLITZO!"

Soon, the emerald begins to glow a dark green color and the magic begins flowing around his body. Everyone stops fighting and looks to hear Ratburn scream and the gemstone on his tie begin to glow.

"What the hell is going on?" Drew asks.

"I don't know, but I don't like it," Cindy says.

Soon, Ratburn begins mutating as his body begins to enlarge, almost monstrous.

Sarge shouts, "Everyone, hurry out of the room."

Everyone then rushes out of the room as Ratburn grows large and glares to see everyone escaping through the door.

"Oh no you don't!" Ratburn shouts and begins to chase after them.

But Randall, Drew, Sarge, and Barbie shut the door. Stolas uses his magic to create powerful chains, but Ratburn begins barging at it from the other side.

"I don't think the chains will hold for very long," Stolas says.

"Everyone, hurry into the lobby!" Sarge shouts.

Under Sarge's command, everyone begins running away just that. Ratburn continues barging his entire body against the door as he mutates even more and continues to break the doors down as he continues calling out Blitz's name in pure rage.

Meanwhile, everyone mananges to reach the lobby. Stolas then uses his magic to open the portal to his courtyard. Sarge and Blitz use their Asmodean Crystals to open the portal to the same location.

Sarge calls out, "Everyone, hurry through the portals. You all will make your escape."

And with that, many of Ratburn's employees went into revolt and rushed through the portals, taking some of their valuables behind.

Back in the office, Ratburn continues banging on the doors and is able to destroy the chains Stolas has conjured up.

He then cries out, "BLITZZZZZZZOOOOOOO!"

And Ratburn's voice can be heard all the way to the lobby.

"It's Ratburn!" Velma says, worried.

Stolas then says, "Yes, but luckily that's everyone."

Stolas then takes Octavia's hand, "Come on girls, we have to hurry."

"Okay," Octavia says, still having Mimmy in her arms.

Stolas then takes his daughter through the portal. Sarge and the others soon rush through the portals and the portals of the crystals close. However, Stolas notices Blitz hasn't walked through the portal.

"Blitz, what are you doing?" Stolas asks, and rushes over to him, "Blitz, we need to hurry. Ratburn could be here any moment and..."

"I'm staying," Blitz says, sounding serious.

"What?" Stolas asks, shocked.

"I'm staying in Stolas," Blitz says.

"Blitz, what are you saying?" Stolas asks, starting to grow anxious.

"I have to do this. I know it's foolish, but I have to face Ratburn. I can't rest until I end things with him. To end this chapter of my life for good," Blitz says, sounding determined.

Worried, Stolas tries to reason with Blitz, "Blitz, you can't face him alone. I know you had trouble with him in the past, but I..." And soon tears were verging from his face, "I can't leave you here to die."

"And you won't," Blitz says, determined.

That has Stolas surprised, and tears fall from his face.

Blitz then turns to Stolas, "I understand, but... it's time for me to stand on my own grounds. And I rather made sure you all live and that Ratburn will never hurt anyone again. I can't rest until I stop him, for everyone's sake."

"Blitz," Stolas says, feeling heavy hearted.

Stolas nods and says, "Yes, but... Please... promise to come back alive."

"I promise," Blitz says.

Soon, both Blitz and Stolas give each other kisses on the lips. And after the kiss, the two hug. Stolas then walks through the portal.

Blitz watches as Stolas begins walking through the portal, forcing him to leave him behind.

Song:

Togire togire ni ukandekuru

(Intermittently, they come floating by)

Yasashii omoide

(The gentle memories)

Soon, Blitz's mind flashes back to all the time they have together as tears begin streaming down his face.

Song:

Ano hi miteta yume no kakera

(The fragment of the dream I saw that say)

Ima mo kono mune ni

(Reside in my heart even now)

The first memory is the day they first met in Stolas' royal chamber. How Randall trips them, and how it leads to the kiss, how they spend time together that night. And when their love begins to blossom.

There are images of when Stolas and Blitz went on their first date. How they love to spend time together. Even when Stolas ends up saving Blitz from the incident with the D.H.O.R.K.S. Everything that Blitz and Stolas have gone through. And everytime, their love continues to grow.

Song:

Watashi waomou taisetsuna no wa

(I believe that's what's important.)

There's also memories of when Blitz rushes to Stolas rescue from Striker, and how he ends up getting injured in the process.

There's also another memory when Stolas fights back the vampire ghost to be sure Blitz doesn't suffer.

Song:

Imanan da yo

(Is the present)

Mae wo mukaou

(moving forward)

And how Stolas helped teach Blitz how to control his magical abilities that continue to grow.

Song:

Ohisama sansanto

(This sun shines brightly)

Hajikeru egao ranran to

(Smiles bursting radiantly)

With all the memories in mind, Blitz looks down to see the ring he still has on his finger, bringing back the memories of one of the best days of his life, especially when Stolas proposes to him, and Blitz happily accepts.

Song:

Taisetsu na kizuna wa kieru koto wa nai

(These bonds will never fade away)

And the last thing Blitz also has in his mind is Stolas' smiling face.

Blitz then places his left hand close to his chest and covers it with his right, as tears begin to stream down his face. He then hears maniacal laughter and looks up to see the large monstrous Ratburn has now revealed himself to be the monstrous rat that he is.

"There you are, now then, time to end you and send you into oblivion!" Ratburn says, and lunges at him with his claws.

Blitz then dodges and conjure his fire magic. The magic mananges to slightly burn him, but then Ratburn then coils his tail around Blitz's neck, and then throws him at the pillar. Blitz mananges to press his feet on it before pushing himself towards Ratburn. Then Blitz kicks Ratburn in the face, and fires his electric magic at Ratburn's side, but Ratburn makes a spiky wrecking ball with his tail a mananges to strike Blitz on it. Then sends him flying and crashing to the ground. Blitz struggles to get up, but Ratburn presses his large foot on Blitz. Blitz struggles to break free and thinks of his friends, his family, and his love waiting for him. Blitz launches his fire magic at Ratburn, but it's not having much effect because Blitz feels the pressure. He then takes a deep breath, and begins to focus his magic. Thinking of his family and friends up in Heaven, on Earth, and in Hell. And suddenly, a strange glow emerges.

Seeing that he has Blitz trapped, "Ratburn says, "Blitzo Abercrombie, time to be rid of you!"

Suddenly, a dark demonic red and light golden yellow glow appears under Ratburn's large foot

His eyes wide in shock, "What this?!"

Then something zips through his hand, causing Ratburn to scream in agony and lifts his foot to see a big hole in it. He viciously turns his head up and is shocked to see what he is seeing.

What Ratburn sees is Blitz is floating in the air and his left arm begins more dark, demonice and is dripping blood on it. The red and gold energy is also what's keeping him floating in the air.

"That... THAT'S IMPOSSIBLE!" Ratburn exclaims in shock.

Ratburn then tries to fly up and punch Blitz, but the Imp flies around him. Blitz then lifts his right hand up, and magically appears, a sword that looks like it's made of angelic steel, almost like a katana sword. The handle is wrapped in black, red colored silk. The blade is a dark red with white markings on it.

With strong determination, Blitz shouts. "Alright Ratburn, it's time for you to pay for all your crimes! For everyone you hurt! For all the lives you destroyed! You coward! YOU EVIL RAT!" and clenches his katana's handle.

Ratburn tries to throw his spike ball tail at Blitz, but Blitz uses his sword to slash at the tail, cutting the spikeball right off. Ratburn is shocked to see it and tries to throw his fist at Blitz.

But then Blitz counters with his demonic fists, and counters Ratburn's power, pushing him back. Ratburn tries to lunch at him, but Blitz ends up scratching Ratburn's face, causing to scream in agony. Ratburn then tries to reach his demonic claws towards Blitz.

Blitz then swings his angelic katana, "Time to atone for your sins, Ratburn!"

And cuts Ratburn's arm clean off, shocking the Rat Demon even more and making screams in agony as blood splatters around. Blitz then reverts his demonic arm back to its normal state and now has both hands on the handle of the katana.

Blitz then lifts his sword and he yells, "AT THE COST OF YOUR LIFE!

And the sword lets out an angelic glow as Blitz swings the sword down towards Ratburn's neck, about to finish him off.

However, something flashes back into Ratburn's mind. One of his strongest memories flows into his mind.

Flashback:

And that is when the Imp Circus is surrounded by green fire. Ratburn is holding a dagger covered in black blood. Standing in front of is Cash Buckzo, Blitzo's father, who is sitting on the ground with a fatal stab wound on his stomach.

Ratburn smirks, "You really should have listened. Now you won't have a circus and a life to go back to."

Cash glares as he growls towards Ratburn.

He then says, "You know, seeing you and your daughter's faces, you remind me of that pathetic little brat of the Abercrombie family."

"What the fuck are... are you blabbering about?" Cash questions, despite feeling weakened.

"There's a son of another circus who dared to refuse my offer and wanted to teach them a lesson, but he and his family got in my way," Ratburn says, "His name is Blitzo. Blitzo Abercrobmie, and he has a strong resemblance to you."

Cash is shocked, "Bli-Blitzo. You... you mean... you know my son?"

"Your son?" Ratburn questions. And soon realizes, "I see, so that freak wasn't human at all, but a demon raised by humans. And to think I've come across someone who has different families," Then evilly grins at Cash, "Not that he'll be able to see your face again, since he's still alive in the human world."

But suddenly, Cash says, "Maybe... but knowing my son is alive is good for me, and I can only wish that he and Barbie will be able to find each other, make sure you're fucked."

Ratburn frowns to hear Cash talking like it.

Cash continues with a determined glare at Ratburn, "The day will come when both my children will reunite and will have to face you, and you'll be ready to pay for everything you have done! I can only hope that it will cost you your fuckin life!"

Flashback Ends:

Ratburn soon says to himself, "So then... what he said is true..."

He suddenly gasps to feel the angelic blaze begin to slice across his neck. Ratburn acts fast and grabs Blitz's head with his remaining arm, and coils his tail around Blitz's check. However, Blitz refuses to back down and continues to slice across his neck further. Soon, both their powers combine and spiral into a vortex of energy, of bright red and bright green. On his neck, the green crystal begins to show signs of cracking. Ratburn struggles to pull Blitz off, but Blitz continues to slice further and the crystal cracks more and more. Finally, the crystal shatters into dust overwhelmed by Blitz's powers. And then, Blitz's sword slices through Ratburn's neck, beheading him in the process. Ratburn's head flies into the air before crashing into the ground, and because the crystal's power has been destroyed, both his head and body dissolve into dust.

Blitz heavily breathes exhaustion, knowing that countering the crystal's power, and fulling using his own strength and power leaves his body raggeded.

He then falls to his knees and mutters to himself, "I did it... I finally did it... I... I defeated Ratburn... I'm... I'm able to avenge my families. Make Ratburn pay for all that he did," and soon tears stream down his face, he is glad that he protected everyone he loves and avenge his families from Ratburn's reign on everyone.

Back at the Goetia Mansion, everyone waits worriedly about Blitz. Suddenly, they notice a light green glow and turn to see that it's coming from Velma.

Song:

Togire togire ni ukandekuru

(Intermittently, they come floating by)

Yasashii omoide

(The gentle memories)

"What's going on?" Drew asks.

"I... I don't know," Velma says, shocked.

Velma looks to see that the light green glow changes in the form of a collar and a line of chain around her neck. Soon, the chain and collar begins dissolving and turns into dust. Soon enough, the collar and chain around Velma's neck is gone, disappearing without a trace.

Song:

Ano hi miteta yume no kakera

(The fragments of the dream I saw that day)

Ima mo kono mune ni

(Reside in my heart even now)

"What was that?" Barbie asks.

"The... The chain... it's... it's gone..." Velma says, and soon tears begin streaming down her face, "It's really gone..." and smiles.

"What does that mean?" Randall asks.

"I think it means that the hold Ratburn had on Velma is gone," Sarge says.

"That's right..." Velma says and wipes the tears from her face, "I'm free. I'm finally free from him."

Berry and Drew look to notice.

"Guys, look," Berry says.

Everyone rushes over to see that all those who are in service to Ratburn have their chains removed as well. Everyone begins cheering to have finally been free from him.

Seeing what is happening, Velma says, "Blitz must have done it. He must have destroyed Ratburn and the contracts he had on us."

Song:

Watashi wa omou taisetsu na no wa

(I believe that what's important)

Stolas smiles, "I'm so relieved to hear it, Velma," He then walks towards the balcony of his room, opens the door and walks over, "But... where's Blitz... I hope he's okay."

"Me too," Barbie says, showing concern.

Stolas soon begins to grow worried and murmurs to himself, "Blitz, where are you? Please be okay."

Suddenly, he notices a silhouette coming towards the palace. Sarge, Loona, and the rest of the group walk onto the balcony to see the figure flying towards the palace.

"What is that?" Berry asks.

Song:

Ima nan da yo

(Is the present,)

Mae wo mukaou

(Moving forward)

Stolas squints his eyes and suddenly opens his eyes in shock, but he smiles and tears begin falling down his face. Stolas quickly leaves the room, and soon reaches the front courtyard of the palace to see the figure descending towards the ground.

Song:

Ohisama sansan to

(The sun shines brightly)

Hajikeru egao ranran to

(Smiles bursting radiantly)

Taisetsu na kizuna wa kieru koto wa nai

(These bonds will never fade away)

The figure soon descends and lands on the ground, revealing Blitz holding an angelic sword, and both demonic and angelic energy continue to flow around his body.

Stolas is shocked, but tries his best to contain his surprise, but also has signs of relief and tears now."

Blitz smiles and says, "Hi Stols, I'm sorry for worrying you."

Stolas is surprised to see Blitz having an angelic sword, and powerful energy floating around him. However, the fact to see Blitz again has him shedding tears of joy.

"Blitzy..." Stolas softly says, and slowly begins approaching him with a smile on his face.

That's when everyone gathered around to see the two reuniting.

Song:

Togire togire asai nemuri

(Intermittently, the light slumber)

Ashita ga afureru

(Tomorrow overflows)

Ano hi miteta sora no aosa

(The blue of the sky that I saw that day)

Itsuka sono naka e

(Someday I will find myself amidst it)

Stolas then smiles and tears stream down his face "Blitz... Are you okay? You're not hurt are you?"

"I'm... I'm okay... just a bit sore, but I'll be okay," Blitz says.

"What happened to Ratburn?" Stolas asks.

Song:

Dareka no sei ni shitai no

(I want to pin the blame on someone else)

Mugen no toumeisa

(For the endless translucence)

"Ratburn is gone. Gone for good," Blitz answers.

"Oh Blitz, thank goodness you're okay. I was starting to get very worried. I was starting to fear the worst," Stolas says in relief.

Song:

Minna to tomo ni sasete

(Let me be with everyone)

Kono mune ni kagirinai

(In this endless heart of mine)

Stolas then places his hand on Blitz's cheek, "Still, this... this is phenomenal."

"Yeah. I kind of noticed it as well," Blitz says, "I... I'm still trying on this. It's probably just some new powers I've developed.

Stolas giggles, "We can think about it later, but my," And dip Blitz down, "You are very handsome in this form. Of course, anyform you take is handsome."

Blitz giggles and blushes, "Stolas, you're being a bit sappy again, but thank you."

"Despite this, you are still my darling, Blitzy," Stolas says.

"Oh Stolas," Blitz says.

Then the two give each other a passionate kiss.

Song:

Ohisama sansan to

(The sun shines brightly)

Hajikeru egao ranran to

(Smiles bursting radiantly)

Stolas wraps his arms around Blitz's waist as Blitz wraps his arms around Stolas' neck. The two continue with their strong passionate kiss. Everyone soon cheers happily.

Song:

Taisetsu na kizuna wa kieru koto wa nai

(These bonds will never fade away)

Cindy walks over and says, "Blitzo, thank you and all your friends for freeing us. I don't think I could forgive myself if you perish."

Not long after that, Barbie and the others reach outside to see Blitz and Stolas passionately kissing each other. Of course, seeing Blitz has gained new powers.

"Blitz is okay," Berry says.

"I'm so glad, but where did he get an angelic sword," Jeanie says, shocked.

"Who cares. I'm just glad he's okay," Barbie says.

"Yes. We're all relieved to see that he's alright," Velma says.

Soon, Blitz and Stolas stop their kiss and look at each other and hug each other with smiles.

Barbie walks over, "Are you okay, bro? How do you feel?"

"I feel okay, but I feel a bit light, and I never expected to be able to fly, and to gain a sword and gain a demonic arm," Blitz says.

"Demonic arm?" Drew questions.

"Yes. It reverted back so I can hold the sword," Blitz says, presenting it.

"But, are you going to be okay? I can imagine that fight must have been intense," Octavia asks, worried.

"I'm okay, I'm just feeling a bit tired. I really went all out there," Blitz says.

"Hmm, I wonder if the sword and arm had anything to do with the serum," Sarge ponders.

"It's possible," Millie says.

"Well, the important thing is that we all got out of this okay, no serious injuries," Stolas says.

But Octavia says, "But dad, you're still recovering from the last injury you got," and still rubbing her wrist.

"Are you okay, Via?" Loona asks.

"I'm fine, still a bit bruised from the blessed ropes. They really tied us tight," Octavia says.

"Yeah, the rope burns kind of hurt," Mimmy says.

Blitz then picks up Mimmy, "It's okay, Mimmy."

Then Stolas hugs his daughter, "I'm just relieved we've managed to escape this."

"I guess that all that matters," Octavia says.

She then hugs Blitz, "Thank you for coming and saving us. Even if it means your chances are uh, slim."

"It's alright Octavia. I'm just so glad that you're all safe," Blitz says.

"Well then, now that we've finally got out of that mess, how about we celebrate," Randall says.

"You really want us to celebrate after going through that?" Millie asks with a smile.

"Well yeah. We need to celebrate about how we actually escape from the craziness, and on how Blitz is actually able to take down an Overlord," Randall says. Then turns his head, "Right Blitz..." however, he hasn't hurt anything from Blitz, "Uh, Blitz?"

Everyone soon looks to see Blitz ends up leaning against Stolas' feathery chest and falls asleep. Stolas is a bit surprised to see Blitz is sleeping without anyone noticing. Stolas then smiles and gives Blitz a hug before picking him up in his arms.

"He's asleep," Razor says.

"I don't blame him. After using this much unexpected magic and who knows what else to defeat Ratburn, he must have been exhausted. Not to mention we were up all night," Drew says.

Mimmy then yawns of exhaustion as well, even Octavia.

"I'm tired myself," Octavia says.

"Me too," Mimmy agrees.

"Yeah," Barbie says. Then picks up Mimmy in her arms, "I think it's time for all of us to go to bed."

"Yes. This has been a very long night," Stolas says.

Velma then turns to Cindy and the others, "So what will you all do now?"

"I think it's time that we all move on with our lives," Cindy says.

Sammy walks over, "Yeah. Now that we're free from Ratburn."

The other Imp, Nick nods in response.

Meanwhile, in his secret hideout, another Overlord, Toxbane, continues to work on his research, extracting the blood from Exorcists, and using chemicals and other essentials. He also heats or cools some chemicals and combines them.

Suddenly, he hears a knock on the door.

Toxbane turns and says, "Come in."

Soon, a female Imp demon walks inside, "Toxbane, sir."

"Yes, what is it?" Toxbane asks.

"Sir, we've got word that the Overlord Ratburn is dead," The imp says.

"Dead you say?" Toxbane asks, taking an interest.

"Yes," The imp says and presents the pad to turn on a video, "One of my spy cams got the action on video from his estate that's been destroyed. And the Imp, Blitzo Abercombie, is the one to slay him."

This piques his interest and looks to see in the video that Blitzo has gained a powerful magic that is rather angelic, along with an angelic steel sword. He then displays him having a demonic arm.

"I see... so my experiment has evolved more than I can imagine, and has created something incredible," Toxbane says.

He then nods, "Thank you for your report. You are excused."

"Of course, sir," The Imp says and takes his leave.

Once she's gone, Toxbane says to himself, "Blitzo Abercrombie, you've not only survived my serum's effects, but you've managed to make your powers and my serum evolved more than I can even imagine. I must thank you for that, my boy. You will not only help be sure that no Hellborn or Sinner will suffer another Extermination..." He then begins unbuttoning his shirt, to reveal a deep scar on his body, and it's glowing, "But will be the key to give me new life..."

Toxbane has a memory flashing back in his mind. Years ago, before he begins to use Exorcists, he was attacked by Adam, but miraculously survived.

Toxbane says, "Many decades ago, before I began to use Exorcists in my experiment, I was attacked by the Angel Army's leader, Adam. I somehow survived, but ended up with a terrible scar from his weapon on my body. Overtime, the angelic steel begins to slowly poison and eat away at my soul. And with that, my research began. In order to free me from being eaten away by my scar, I need to do one of those two purposes. To use the blood of demon and angel to create a serum that will heal me, or to find a demon who can survive the angelic blood and gain angelic powers in the process."

He then opens the curtains to let out some sun.

"And at long last, I have found him," Toxbane says, and looks to see the sign of a mountain area with a large field.

"Blitzo Abercromie," Tozbane continues, "You have survived my serum, the Cascade Gateway Disaster that I unexpectedly caused while escaping to Earth, and managed to live your life on Earth as a human being. Now that I've found a demon who survived the serum and evolved it, and possibly evolve it even further. You will be the key to my goals. With my body starting to show signs of death, I shall make your body my own. And I will become the most powerful being of Heaven, Hell, and Earth. I will be the most powerful being of all time."

Back at the Goetia Mansion, after the Sinners and Hellborns who are freed from Ratburn to begin their new lives, Sarge and the others are in the palace's guest room as they sleep peacefully. Mimmy ends up sleeping with Octavia in her bedroom. Barbie is also sleeping peacefully in her room.

Inside the royal chambers, Blitz is still fast asleep as Stolas gently rubs Blitz's horns to sooth him into a gentle sleep.

"Sleep, my love. You've earned it," Stolas says. He then gently kissed Blitz, "Thank you my love. You are truely, one of a kind. No matter what happens. I will love you, always."

Soon, Stolas falls asleep as Blitz gently rubs his head against his feathery chest. As the two sleep, a transparent gold halo appears over Blitz's head, a pair of transparent golden wings appear on his back, and a small glow of a golden heart appears on his chest.

Kamado Nezuko no uta from Demon Slayers Season 3 episode 11