Denji and Power are walking to a run down building on the outskirts of Arlum village

Power: "You will have to face the devil alone if I were to be noticed the devil would surely take my precious Meowy as a hostage."

Denji: "Yeah that makes sense.  So I'll just barge in chainsaws out and saw the fucker dead."

They approach the shack getting closer and closer

Denji: "Hang on why are you getting so close to the shack if the devil will take your cat hostage?"

Power creates a hammer from her own blood and hits Denji in the back of the head knocking him out she then proceeds to drag him inside the shack

Power: "Hey magic devil I brought you blood as you asked!"

Magic devil: "finally I've gotten so hungry."

The magic devil picks up Denji with it's long spindly hands bringing him to his mouth and biting down

Magic devil: "Disgusting!"

The magic devil throws Denji to the ground like he's a ragdoll

Magic devil: "This blood is utterly disgusting!"

Power: "Well you're healed now give me back Meowy!"

Magic devil: "Of course your cat."

The magic devil pulls out a metal cage with a fat cat inside it

Meowy: "meow!"

Power: "Meowy!"

Magic devil: "Unfortunately I need something to get that awful taste out of my mouth."

The magic devil tosses the cage in the air as Power tries to save her cat it grabs her and makes her watch as it devours her cat in one gulp

Power: "You bastard I'll kill you I swear!"

Magic Devil: "Fret not you'll join your friend soon blood devil."

The magic devil throws Power into it's mouth swallowing her in one gulp

Magic devil: "Now that is much better."

A small puppy with a bald spot on it's head the same one Denji encountered the other day walks into the room

Magic devil: "Ah yes I should make good on my contract and burn down that mansion."

The magic devil and the puppy walk out of the house to be greeted by a pack of Doberman like beasts

Magic devil: "Lay waste to the village while I burn the mansion."

The magic devil takes off similar to how Roswaal would

Magic devil: "I do so love it when a plan comes together and that half elf's blood will be a true delicacy with how pure and innocent she-."

???: "You!"

The magic devil looks to his leg to see Denji feeding off his blood and fully regenerated

Denji: "Cough up the tits!"

Magic devil: "You're still alive!?  No matter.  EL FURA!"

Denji thinking quickly pulls on his rip cord as hard as he can as the wind blast hits him and obscures him

Magic devil: "And just like that all is-."

[There should be a GIF or video here. Update the app now to see it.]

Denji erupts from the clouds created by the magic devil's spell now transformed into Chainsaw man

Magic devil: "You're a devil!?"

Chainsaw man: "Give me back the tits!!!"

Chainsaw man runs up the magic devil's body and digs his chainsaws in near the magic devil's abdomen spraying blood everywhere

Magic Devil: "You fool if you break my concentration we'll both fall!"

Chainsaw man: "GIVE THEM BACK!!!!!"

Chainsaw man and the magic devil go plummeting to the ground landing right in the middle of town with the Mabeasts arriving just in time

Magic devil: "What are you waiting for!?  Rip him apart!"

The Mabeasts dogpile on top of Chainsaw man only for them to be turned into hairy sashimi

Chainsaw man: "Stop sending your dogs and give me back my melons you bastard!"

Chainsaw man charges at the magic devil

Magic Devil: "That does it go back to hell!  AL MINYA!"

The magic devil shoots off countless shards of purple crystal only for Chainsaw man to slice through them all like butter while quickly approaching the magic devil

Magic devil: "DONA!"

Chainsaw man is blown back by the earth shifting below him sending him into a nearby house where he sees a terrified Petra

Chainsaw man: "Don't worry Petra just get the hell out of here."

Petra: "Wha-!?  What are you!?"

Chainsaw man: "You seriously don't recognize me it's me Denji now get the hell out before that bastard gets here!"

The magic devil approaches as Denji gets out of the rubble

Magic devil: "You're not eating humans?!"

Chainsaw man: "Frankly I don't give a shit about humans, elves, devils, or whatever she's a friend of mine and she's gonna see me kick your ass!"

Chainsaw man charges at the magic devil who hurls spell after spell at Chainsaw man only for him to slice through every last one of them

Magic devil: "No stay back!"

Chainsaw man: "I'll have you know I've been very patient!   So tell me why haven't I coped a single DAMN FEEL YET!?"

Chainsaw man jumps above the magic devil who summons a magic barrier in an attempt to stop him but all it does is delay the inevitable as Chainsaw man comes down on the magic devil and bisects him perfectly

Meanwhile back at the mansion Ram has heard the commotion and has already dressed herself in her devil hunting uniform and as she comes to the door she's greeted by someone she hasn't seen in some time

(Frederica here wears an eyepatch as she made a contract with the ghost devil)
???: "Hey Ram it's been some time."

Ram: "Frederica... I see you've returned."

Frederica: "Aw come on, at least give me a slightly warm welcome after all I am your senior.  Oh and I brought some newbie devil hunters if that's okay.  Kobeni, Reize get your asses over here!"

Immediately Frederica is joined by a timid girl who looks like she's about to pass out from stress and a girl who looks like Rem with long brown hair and two glowing horns

Ram: "I can be impressed you found another Oni later for now we have devils to kill."

Meanwhile back in the village Denji has returned to his human form and is digging through the Magic devil's guts to find Power which he does thankfully she's still alive alongside Meowy

Power: "Why did you save me?  I tried to kill you."

Denji says nothing but points to Power's chest and makes a grabbing motion with his hand

Power: "You did all that just to squeeze my breasts?  Alright then you may touch them."

Denji: "Hell Yeeeeeeaaaa-!!!"

Denji's left hand is blown off mid celebration

Denji: "Shit on a stick!"

Denji cradles his stump as a large worm like creature with long black hair appears

Leech Devil: "So you're the one who killed Magi you've gotta be kidding me."

Power: "Denji take Meowy and run as fast as you can."

Denji: "Fuck that!"

Denji pulls his rip cord trying to transform but only a small chainsaw protrudes from his head

Denji: "Shit! My chainsaws why aren't they working!?  Must not have enough blood."

Leech devil: "What a bother I just tracked down my soul mate only to find a little shrimp killed him although to be fair you are kind of a stud muffin so I guess you can go."

Denji: "And what about them?"

Leech devil: "I am hungry after tracking Magi down oh life is so unfair we dreamed of eating all these pathetic mortals as unrealistic as it sounds it was such a romantic idea."

Denji: "I'm not letting you eat my tits so fuck off!"

Leech devil: "That's what this is all about talk about dull."

Denji rushes at the leech devil dodging her attacks as he manages to get his face chainsaw in her neck however she throws Denji away and into the wall of a house

Denji: "That does it I'm sick of people shitting on my dreams!  It's always revenge this, protect my family that, eat all mortals, save my stupid cat but MY dream is the stupid one!  I'll tell you what we'll settle this right here right now we'll have a dream battle whoever wins has the better dream!"

Leech devil: "You talk too much."

The leech devil launches a barrage of tendrils at Denji who dodges them and even slides on top of them as he grabs the magic devil's entrails and starts tying them around her legs

Denji: "I'm gonna win this dream battle cause titties are the greatest dream ever!"

Leech devil: "Shut up you damn brat!"

The leech devil brings down one of it's tendrils on Denji only for him to dodge and grab it having the tendril bring him up to her neck before digging his face Chainsaw into her neck and pulling his rip cord splattering blood everywhere however the leech devil managed to get Denji in the stomach and brings the defeated part time devil hunter up to her face

Leech devil: "I'll admit you were fun but now it's time to die.  You should've taken the chance to leave when you had it."

The leech devil opens her mouth preparing to eat Denji when suddenly

???: "Kon."

Ram accompanied by Frederica and her band of rookie devil hunters had arrived on the scene Frederica holding the decapitated head of an alpha Mabeast

Frederica: "Damn tricky of that alpha to disguise itself as a puppy."

Fox devil: "This is the leech devil.  May I swallow?"

Ram: "Go ahead."

The fox devil disappears as Ram walks up to a now unconscious Denji

Ram: "I'll admit what you did was impressive but quite stupid.  Kobeni assist me in bringing him back to the mansion."

Kobeni: "Y-y-yes ma'am!"

Kobeni puts Denji on her back as Ram goes over to assist Power

Ram: "What made him do this?"

Power: "He did all this just so he could grope my chest."

Ram: "Just as I thought he really is an idiot but a strong idiot that's for sure."

Ram helps Power back up as they return to the mansion

(And there's another chapter and officially the end of the mansion arc hope you all enjoyed)