We see the Shadow Emperor on top of the roof of a building as he stood there after he and the rest of his shadow Garden continues on the search for Alexia but there was no luck of her soo far.

He stood there on the roof and thinking of the possibilities that she could be or her kidnappers might be hiding as he stood there for a moment and then lifted his head up to the city.

Shadow Emperor: If the Cult of Diablos were the once who kidnapped Alexia and the other victims and if they are somehow gaining help by some group within the Knight order then what is the possibility that they would be hiding. What do you think Beta.

Beta appears behind him and although she was surprised that he ask her she try her best to help him by thinking about it and then reply while she walked up next to him.

Beta: Well if the cult is being helped by the law then perhaps a group within the  Knight order hide them somewhere that allow them to do their operations and goals.

Shadow Emperor: Indeed however this is a huge place, anything could raise suspension to other citizens if they are hiding anywhere that stands out.

Beta: True but what about pleases that isn't stand out. Maybe somewhere that people don't usually go to. Maybe somewhere that is completely huge and allows them to move around me.

Shadow Emperor: (looks down at the ground) The Sewer.

Beta: (snap her fingers) That's right! It's huge and they can easily move random people into their base without any trouble.

Shadow Emperor: Then that's where she is. (Turns to Beta) You did good Beta. Tell the others to be on standby if I return.

Beta: (smile) You can count on me my lord!

Shadow Emperor nodes and then leaps off the roof and phase through the ground and splash into the sewer and look around. It was clear so he stand up straight and moves through the sewer, searching for anything that could lead to him to Alexia.

He continues moving through the sewer until he head something behind him so he stopped. He stood there was sounds of bubbles can be heard around him as they start to form a circle around him while he stood there for a short second.

Then four cult members came out of the water with daggers in hand as they launch to attack him only for them to disappeared into black smoke as they miss him and look around.

Suddenly knives hits them on the heads and they fell into the water whole we see him with his hand out as he throw the knives at them. He then lower his arm and keep on walking like nothing happened.

Soon he reach a dead-end as he climb up the steps and approach a wall that is in his way. This doesn't mind him though as he phase through the wall and arrived at a hallway as he keeps walking.

Cult of Diablos member: Surprise you son of a-

The two of them came out around the corner with their crossbows at the ready to kill him but they were confused as they see nothing but a wall in front of them. They look at each other and shrugged only for the first cult member to be grabbed by the neck by the Shadow Emperor while his other cult member aim his crossbow at him but he shot him a glare that traumatised him as he drop the crossbow and run away.

Cult of Diablos member: Hey don't leave me here with him!

Shadow Emperor: Where is Princess Alexia. Tell me now!

Cult of Diablos member: I'll never tell you!

Shadow Emperor: You have two options. Option one; I give you nightmares for the rest of your life and you will no longer be go outside because of the nightmares. Option two; You'll tell me where Princess Alexia is and I'll break both of your legs and you will not walk for 3 to 6 months. You only have 3 seconds.

(Meanwhile)

We see Alexia being strapped onto a table as we see a mad scientists sticking a syring into her arm and interacting some of her blood while repeating "Royal blood" over and over while Alexia was a bit calm in this situation and then ask.

Alexia: So why do you need my blood?

Mad Scientist: (crazy smile) To bring a demon to life. Your blood, your royal blood with bring this demon to life.

He then walks over to a cell which contains what seems to be a lifeless demon as he ready his srying into the demon before he was garbled in the head and have his nexk snapped by the Shadow Emperor who appeared out of nowhere.

Alexia was shocked to see him as he turns to meet Alexia as he phase through the cell and then torn off the straps off and once that he let out his hand to her.

Shadow Emperor: You alright Princess Alexia?

Alexia: (surprised) Y-Yeah (take his hand) Thanks.

He helps her out of the table as she turn to the two bodies and then back to the Shadow Emperor.

Alexia: So you must be the Shadow Emperor that I've heard about right?

Shadow Emperor: That is correct. Right now we need to get out of here before they found out that your gone.

Alexia: Right.

They leave the room and make their way through the hallway and soon enter into the sewer and before they could decide where to go they heard a voice called out to Alexia.

???: Princess Alexia!

They turn to see Zenon approaching them with a relief smile on his face.

Zenon: (smile) I am glad I've found you. Please come with me, we can escape this smelly please together.

The Shadow Emperor grabs her by the arm and gets her behind him which Zenon stops when he noticed him.

Shadow Emperor: I don't think she's not coming with you.

Zenon: (smile) Why would you say that?

Shadow Emperor: Then tell me how did you know she is here. Not just in the sewer but in this area, the tunnels is like a maze so it is impossible for you to find us unless you know this route. Plus if you were looking for Princess Alexia then where are your guards? Surely you know how dangerous the sewers are travelling on your own right?

Zenon stood there for a moment and then let's out a evil smirk as he tells the Shadow Emperor.

Zenon: (smirk) Yep. You caught me red handed. I know these sewers because I'm apart of the Cult of Diablos and was the one who kidnapped Alexia.

Alexia: (angry) You little son of a bitch.

Shadow Emperor: But why?

Zenon: (smirk) To move up a rank of course. My originally plan is to rescue Alexia alive and well, get promoted and then take her back to the cult. (Pulls out his sword) But I guess I have to kill both of you then.

Then Alexia launches at him in rage and pulls out her sword that she managed to get after Shadow Emperor saved her as the two start to clash each other.

Alexia: (angry) You sold me out to those crazy cults just so you can get promoted! Your gonna die Zenons!

Zenon: (smirk) You really are weak. Gonna say it must be ashame that your sister is a skilled swordsmen unlike you!

The two dual as Zenon duals aggressively as the two clash blades at each other. He then slapped her, costing her to stumble back and slip and fell. She lose her sword as Zenon lifted his sword up to slash at her but then the Shadow Emperor came over and punch Zenon in the guts.

Shadow Emperor: Never dare mock or treat her like crap scumbag.

He sent Zenon back as he coughs out blood from his mouth and once he wipe the blood out of his mouth he charge towards the Shadow Emperor which he immediately pulled out his sword out of his cloak and clash at Zenon.

The two enter a blade lock for a moment and then he pulled out his second sword and slice off Zenon arm that is holding his sword as it fell onto thr ground while Zenon yells in pain as he kneel down while Shadow Emperor stood over him and tells him.

Shadow Emperor: Game over Zenon.

Zenon: Not yet!

He then pulled out a bottle filled of pills and puts all the pills into hid mouth and he start to change and seconds later he turn into a demonic power up Zenon's as he uppercut Shadow Emperor in the chin as his helmet was knocked off from him and landed next to Alexia as she turn and her eyes widen in shocked to see the face of Y/n as he slowly gets up and wipe of blood off of his face.

Demonic Zenon: Your nothing but a pathetic fool! What are you suppose to be a hero?!

He then launches towards him as he reach out his claws towards him, ready to kill him for good as his claws get closer and closer to him.

Y/n: I'm not a hero.

He then show him a red eye glare that made the demonic Zenon to froze in place and start to step back as Y/n slowly approaches him as he turn into a puff of smoke and form around him.

Y/n: Nor I'm not a villain. I am the one who has been through hell and come out with a perhaps and that perhaps is to wipe every evil in the face of this world. I lead my Shadow Garden to wipe evil, corruption, rapist and all those who seek to harm the innocent in anyway possible. To you, you use your power to do whatever you want, to do to anything to the citizens that you protect and making thrur lives worse then ever. I will not stand by and watch that happen, we won't stand by the watch that happen.

Then shadow figures of monsters came out, scaring Zenons as he move around but cannot escape as he let's out screams of fear and then fell onto the water as he look up to see two red eyes glaring at him while wielding a sword as he approach him.

Demonic Zenon: (scared) N-No! Please! I beg of you! I can change! I can turn myself in! I can redeem myself! Please, let me live!

He hit the wall behind him as Y/n glare at him and within a second he stabbed his sword into his chest. He let out a gasp as Y/n pulled out his sword and thendig his hand into his chest and pulled out his heart that is still beating as he glare at him and then he says one word to him that shattered every hope Zenons have.

Y/n: No.

He then crush his heart as blood splatted onto the water as Zenons dies. Then Y/n came out of the black smoke, walk over to Alexia and stop in front of her as they look at each other and then he walk pass her and pick up his helmet and  then tell her.

Y/n: Let's go.

Alexia: R-Right.

He puts on the helmet and the two leave the sewer and made it out unharmed.

(Later)

We see the two back in school as we see the two having their private talk at the back of the school as Y/n ask Alexia.

Y/n: Have you informed your sister?

Alexia: Yeah I did. She sending down her guards to the sewers and some investigation anyone else in her ranks being apart of this cult.

Y/n: That good. We can't allow that to happen again.

Alexia: Yeah. Hey Y/n? How come you didn't tell me you were......you know.

Y/n:.......I wish that no one will not be harmed during my mission. I apologise.

Alexia: There not need to apologise but I was wondering if......we can continue with our relationship. I mean....what fo you think.

Alexia blushes and knows that he would agree and dumb her but then she felt her hands being grabbed by Y/n as he give her a warm smile and then tells her.

Y/n: (warm smile) Yes. I want this relationship to continue no matter what. Besides, you'll know I'll keep you safe no matter what.

Alexia is surprised by this as she blushed even more as she smiled in joy and said.

Alexia: (smile) Thanks Y/n. I love you.

Y/n: (small smile) Love you too my Princess.

Then the two kissed on the lips and once that the two walk back to class while holding hands as Alexia smiled as she really likes Y/n and hopes they relationship will continue forever.

Alexia: Wait? What are your team?

Y/n: They are basically female assassins.

Alexia: Female assassins? Do that by any chance "like" you?

Y/n:......A lot.

Alexia:.............

Y/n: (sigh) Crap.

To be continued................................................