3rd person POV:

The sins and their homemade demon lord arrived at a rocky mountain. Finding themselves at the entrance of a cave.

Wrath was tapping her foot rapidly. Envy was playing with some rocks.

Pride and Demon lord ß were looking at the dark shadowy entrance of the cave.

Demon lord ß: What is this place?

Pride: It's our work already done for us.

Demon lord ß: Perfect...

The Demon lord grabs the entrance of the cave like it was a curtain against a wall.

With a ripping sound filling the air, the cave entrance was revealed to be a magic disguise for an entrance of some kind.

Pride: Wrath...

Wrath:(mumbles) I can't believe that brat...

Pride: Wrath?

Wrath:(mumbles) How could he...

Pride: Wrath!

Wrath: What!?

Wrath: If you would...

He gestures to the door like entrance.

Wrath kicks the entrance off its hinges.

Wrath: Happy!?

Pride: No.

They all begin to enter until a demon from within this unknown magical building ran out to meet them.

Demon: Who dares break into the Demon Lord's stronghold!?

(Opening theme)

(Y/n), Ciri and the gang arrived at the bottom of the mountain.

(Y/n): He hasn't left this mountain. So they all should be here.

Ashann: Do you sense that?

(Y/n): The magic in the mountain?

Ashann: Yes. Strange.

Ciri pulls out her sword slightly out of its scabbard to feel the magic it's trying to absorb.

Ciri: It doesn't matter what it is at the moment.

Ferra: Yeah! All that matters is that we pummel those demons back to hell!

Ashann: Using magic or even a blade would be a more effective option.

Ferra:(sigh)... You're lucky that you are sexy as hell.

(Y/n): That's not actually a compliment. Hell is a shit shack.

Ferra: Fine, she's hot as hell. Better?

(Y/n) stares at Ashann for a moment.

(Y/n): Eh...

Ferra:(gasp) How dare you, my good sir?

Baron: Maybe we should start going up the mountain?

Ciri: Way ahead of you.

Ciri makes the horses go up the mountain by following a rocky trail.

It was a bumpy ride, but luckily a moderately short one as well. For it didn't take them long to find the unmissable entrance to some kind of building in the side of a mountain.

(Y/n): Well we know where they went.

Ciri jumped off the carriage and leaned her sword against the side of the carriage. She and the others then got closer to the door.

Baron: You think this might be a trap.

Ashann: I do not believe so.

Ciri: We should be ready for anything.

(Thump)

(Y/n) decided to jump off the carriage and join the group. He knocked on the door which caused it to fall back, revealing it was broken.

(Y/n): People these days have no concern over the condition of their doors.

He walks in and the others follow. Ciri goes back to get her sword but is surprised to see it has fallen flat on the ground. With the bottom of the hilt facing the entrance, the blade itself seemed to have slightly slipped out of its scabbard.

Ciri:(mind) Strange... Perhaps I'm overthinking things.

(Y/n):(in the distance) Get your fat ass over here!

Ciri: Tch...

Ciri: I'm coming you angsty prick!

She grabs her sword and catches up with the others.

The whole group then begins to explore this strange structure in the mountain.

Ciri, (Y/n), and the others eventually came across an unnaturally shadowy room.

With the only light in the room being in the middle where Wrath was waiting.

Wrath: Took you long enough!

Ciri:(sarcastically) Apologies that we couldn't come sooner.

(Y/n): So what obviously trap do you have for us?

He walks near the entrance of the room without actually entering it.

Wrath: Fuck traps! I'm here to kick your ass!

Ciri: Where's the Demon Lord?

Wrath: Upstairs with Pride, doing something. I don't care. Just come over here or else!

(Y/n): We're not idiots. We ain't just going to walk in-

Before he could finish, the shadows shockingly stretched out and wrapped around (Y/n)'s leg.

(Y/n): Oh shitting Beatles, you're kidding me-

He was flung towards Wrath. Before the others could rush in to aid him, the shadows raised up like water, blocking the others from entering the room.

Envy then walked out of the shadows.

Envy: I want to play too...

Ciri: Go play with yourself, we have important things to do.

Meanwhile, with (Y/n), he was in a small lit room surrounded by black with Wrath.

Wrath:(cracks knuckles)

(Y/n) gets up and dusted himself off.

(Y/n): Fistfight, eh? Are you sure you want to lose at something you're good at?

Wrath: It's time I teach a lesson you won't forget!

(Y/n): You're a goth dominatrix, so I won't expect something intelligent.

Wrath walks up and throws a punch as did (Y/n). They simultaneously smacked each other faces, which caused both of them to fly back and hit the shadowy wall.

(Y/n) had to pull himself out of the wall since it tried to hold him there, whereas Wrath got straight up with no trouble.

When he got free of the shadow, (Y/n) immediately ducked to avoid getting punched by Wrath.

Wrath then spun around, causing (Y/n) to get hit by the stone sphere chained to her.

(Y/n) lifted his arm up to block but he was still knocked to the side by the attack.

Getting up, he saw his arm bruised by the attack.

(Y/n): First of... Ow. Secondly... The fuck?

He stomped towards her. Wrath went for a wide swinging punch, (Y/n) just lifted up his arm to block the attack. He then headbutted her nose, causing her to stumble back.

(Y/n): You seemed to have forgotten who exactly I am.

Wrath ran up and rapidly punched (Y/n) in the gut until he grabbed both of her wrists.

(Y/n): Separating me from those heroes didn't give you an advantage, it only gave me more freedom to let loose a little.

While still holding on to her, he kicked her stomach and swung her up in the air. Letting go of her wrists, he grabbed her long hair with both hands, and in a quick motion pulled her down and kneed her face.

The stone sphere chained to her then landed on her back, making her fully fall flat on her face.

(Y/n): Are we done here?

Wrath: N-no....!

(Y/n): Ugh... you, Sins are causing a lot of trouble for me you know? I just want to live my retirement peacefully but instead, I'm forced to work with the goody-two-shoes squad to stop you fuck bunch from destroying my retirement place.

(Y/n) turns around to try and escape this shadowy arena only for Wrath to stab her fingers in the back of his kneed which caused (Y/n) to stumble and trip.

As he got up on his knees and his wound healed, Wrath was standing over him.

Wrath: Hm...

(Flashback)

In a forest outside of a castle, Wrath was knocking trees down by punching and kicking them.

Wrath: Hya!

(Tree falls)

Wrath: Stupid nature, you're in my way! Ha!

(Another tree falls)

Wrath: A few more trees and work on this "water pond" can start.

She yet again punches another tree.

Boy: Whoa....!

Wrath:?

Wrath turns around to see a three-year-old toddler. He had brown hair and wore shorts along with a sleeveless red shirt.

Boy: Do it again!

Wrath: Uh... Of course my prince!

She roundhouse kicks a tree down, and the boy mimics her movements on another tree but ends up falling to the ground laughing.

Boy: How do you do it?

Wrath: I do it with my strength.

Boy: That means your like... This strong.

He holds out his arms like a fisherman trying to show how big of a fish he saw.

Wrath: I'm not sure what kind of unit of measurement that is...

Boy: Can you teach me?

Wrath: If you want to get stronger, you should speak to your mother, she is the strongest of them all.

Boy: But I want you to teach me! Mommy doesn't kick trees, only "stupid demons" as she says.

Wrath: Uh well, If that's what you desire, my prince.

Wrath proceeded to show the young boy several techniques. This escalated into the boy punching trees and boulders while Wrath stood behind him to destroy them for him, making him believe he was the one to do so. Wrath also corrects his technique as well.

Boy: Yay!

The two sat down against a bolder.

Boy: Thank you miss Wrath, I had lots of fun!

Wrath: It was nothing, my Prince.

The boy then sat in her lap and hugged her.

Wrath:!?

Wrath had no idea how to react to this situation, she tried looking around for an escape, but found none.

Boy:....zzzzzz

Wrath:!?

The boy had fallen asleep nuzzled against her. Wrath then slowly wrapped her arms around the boy and hugged him back.

Her rage-filled heart has mellowed out by the boy's purity.

Wrath:(sigh)... I hope the queen doesn't get mad that half the forest is destroyed...

(Flashback end)

Wrath moved closer towards (Y/n), but he suddenly spun around and roundhouse kicked Wrath in the chest. With a sickening crunch, Wrath was sent flying across the room with most of her ribs shattered.

(Y/n):(sarcastically) Thanks a lot for stabbing, those wounds are a joy to heal!

Wrath: Heh...

(Y/n): You think my pain is funny?

Wrath: No... It's just nice to see you this strong...

She holds out her hands like she's showing him the size of a fish.

(Y/n): I don't know what that means, are you trying to say you caught a fish that big?

(Y/n): Demons and their fetishes...

He pulls out his crossbow and aims it at her, but as he looks at her, his hand begins to shake and he finds himself unable to pull the trigger.

(Y/n): Gha! What the hell!?

(Y/n): What's gotten into me?! Am I feeling... Bad?

(Y/n): What the hell are you sin fucks doing to me!?

Wrath: We (grunts)... We are doing nothing to you.

(Y/n): Except fucking up my retirement...

Wrath slowly stands up and stumbles towards (Y/n).

Wrath: Y-you know... Us. I was mad at what you did to us... But I can't help myself from forgiving you...

(Y/n):....

She holds out her arms for a hug.

Wrath: That day... We failed you and Lucifer. You shouldn't have faced her alone.

(Y/n) then suddenly remembers something. Flashes of a woman in front of the hell gate, a battle, blood on his hands, and hundreds of demons surrounding him.

His eyes glow crimson. When Wrath tries to hug him, (Y/n)'s arm turned into its demonic form and he punched a hole through her chest, lifting her off the ground in the process.

Wrath/(Y/n):?!

Wrath uses her strength to pull herself closer to (Y/n), sliding down his arm. With her last moments, she hugged him while he stood still, processing everything.

As Wrath faded to ash, (Y/n) snapped out of his trance and his arm turned back to normal.

Not wanting to think about what happened, he turned around and blasted a fireball at the shadow wall.

This destroyed the shadow and sent Envy flying into a wall past the others.

Ciri: (Y/n)! Are you okay?

(Y/n): Just traumatized my dear.

Ferra: You won't believe the annoying battle we just had.

Baron: I hate illusions...

(Y/n): His ability is versatile but in no way strong enough to kill a group.

Envy then created shadow wings and flew away.

Ashann: Should we go after him?

(Y/n):... No, let him be.

Ciri: He's right, we have a demon lord rip off to deal with.

They all head back further into the base where they eventually find a room with a large spiral staircase that leads up.

Before they could try to walk up to it, a demon gets in there way.

(Y/n):!?

Ciri: Orcan!?

Ferra: You're still kicking!?

Orcan: Ah, well if it isn't the hero and her companions-

Orcan: My lord!

Everyone: What!?

(Y/n):(mind) GOD FUCKING DAMNIT ORCAN!

Meanwhile, outside of the stronghold, Envy tried to escape the area but was shot down by something.

Envy crashed down into the nearby forest. Struggling to get up, Envy felt someone step on his back and push him to the ground.

He turned his head and saw a woman.

Sophia: Envy was it?

Envy tried to get away from her but she put a little pressure on his back, snapping his spine.

Sophia: I did not free you disgusting demons just so you could get revenge on my nephew.

Envy: T-that's not what w-we're doing!

Sophia: To think, I actually thought that you all cared about him.

Envy: We were just doing what we were told to do! We had no choice but to fight him because he was getting in the way! It's not like we want to do it!

Sophia: Uh-huh... And who told you do whatever it is you're doing?

Envy: The same person who told you to free us.

Sophia:... Since you were friends with (Y/n) growing up... I'll make it quick.

She spreads out one of her wings and uses it to cut off Envy's head.

Sophia: What's your plan...?

(Ending theme)