Only the story belongs to me. Thanks to @TorbinCrow For helping me decide on the first character to use.

And you have the sort of thing that Doppio and Diavolo have where they magically change from one to another. In your case you go from Haz to, of course, Terumi, although both personalities are intimidating.

Enjoy.

(Y/N): Why is this a thing?

You looked at the flier in your hand.

"Interdimensional villain, hero, and anti-hero convention in (Random place). No date or exact location provided due to author's laziness."

(Y/N): Well then. I guess I'll go anyway. I do look forward to this. Whatever it'll be.

You pocketed the note and booked a flight to (Random place) for the next day.

One day + flight later

You flopped down onto the hotel room bed and sighed.

(Y/N): Well then. The convention's tomorrow. Can't wait for it.

Then you passed out into a sleep in which you dreamed of time stopping vampires (Gee I wonder why). The next day you found the convention building and walked in.

(Y/N): Huh. This is higher-class than I thought. I expected two booths and a crapper.

You took a step back narrowly avoiding a knife flying towards your head. Then you nonchalantly caught a fist flying towards your face.

(Y/N): Forget it.

You kicked the would-be attacker into a corner and walked through the place. Avoiding the people fighting and you found your friend Issei.

(Y/N): Hey man how's it going?

Issei: Pretty good. Plus, look over there.

He pointed at a very over-the-top fight.

Issei: Those women are pretty hot. 'Specially the one in yellow.

(Y/N): (facepalm) You're just saying that because she has huge tits.

Issei: (drooling) Yeah.

You were shaking your head at your pervert of a friend when one of them (second to last in the picture) was thrown into him. You walked over to where she landed and offered her your hand.

????: She's dangerous! Get away from her!

You looked behind you to see a boy, who was much shorter than you, with a hairdo that looked like he'd glued a beaver tail to his head.

(Y/N): Dangerous? This pretty face? You must've mistaken her for someone else. (chuckles darkly) Someone like me.

You lowered the brim of your hat as your snakes attacked him and completely eviscerated him and his tacky hairdo.

(Y/N): Better stay down there "buddy."

You turned to the woman you had just called pretty and offered her your hand again. Although she didn't reach for it like last time, this time she just stared at you.

(Y/N): Hello, you alive in there?

????: I'm fine. Just shocked. Now I have nothing to lose sleep over.

(Y/N): Okay, whatever that means.

You put your hat back on and helped her up.

(Y/N): May I ask you your name?

????: Kira Yoshikage

(Y/N): Nice to meet you Ms. Yoshikage. I'm (Y/N) Honoka. Might I ask who he is?

Kira: He was Josuke Higashikata.

(Y/N): I guess it doesn't really matter now.

You looked at the body and saw it twitch. Frowning you lifted your foot and brought it down on his head.

(Y/N): I said stay down! Ugh, it's so messy when they don't listen.

You grabbed a box of matches from your coat and used one to scrape the bits of brain off your shoe. You heard Issei screaming and looked up from what you were doing to see him clinging on to something for dear life as it tried to shake him off.

You sighed seeing that he's gotten himself in an even bigger mess than the ones you'd pulled him out of before.

(Y/N): GET ITS HELMET OFF!

He managed to rip the armor off the beast and you pulled a revolver out of your other coat pocket and nailed the zombie right in the temple causing it to freeze and sway slightly. Issei let go and was almost crushed by the zombie as it fell backwards.

(Y/N): Is there ever going to be a day that I don't have to save your sorry ass?

Issei: Probably not.

(Y/N): I'll give you points for honesty. I mean, that's why we're friends. People hate you because you're a pervert and people hate me because I act like the person I resemble, although people love to hate me.

Issei: Do you have to rub it in?

(Y/N): I'm not rubbing it in. The person who asked Bob to make me punch you in the dick rubbed it in.

Issei: (turns to fourth wall) Listen assholes. Don't tell me you haven't ogled at a woman before. And to those who are going to post comments telling me to go fuck myself. (Flips off said people)

(Y/N): Alright Deadpool if you're done with that then let's get some lunch.

The two of you walked over to one of the various food stands and got (favorite food). While you were eating Issei was hit by another woman (fifth one in the picture). You stopped, looked at him, and went back to eating. When you finished you got up and offered your hand to the woman who you now see was dressed as a nun.

(Y/N): Gee I wonder who's going to try and tell me that she's dangerous this time.

You turned around to see a punk girl standing there with her arms crossed.

(Y/N): I'm just gonna skip the introductions since you're going to die in a second. Hehehe SHING!

You ruthlessly stabbed her in the kneecaps and left her to bleed out.

(Y/N): May I ask your name? No wait let me guess, Pucci?

Pucci: Have we met?

(Y/N): No, that was just a really lucky guess.

You helped Issei up and walked away to look at the other booths.

Kira: He's pretty cute.

Pucci: Yes he is. I'm guessing we're going to wait for the others before doing anything?

Kira: Of course, they need to meet him too.

Later you were looking at some comics and found one of your favorite villains.

A. Bane

B. Doomsday

(Do pick one. It will influence a future chapter.)

You pawed through the issue and bought it before Issei was knocked into a black dude by the rest of the women being thrown into him. Said man looked pissed and took his sunglasses off before proceeding to throw punches all of which were aimed at his face and/or crotch.

 You looked to the men who had done it.

(Y/N): Well then looks like my body count today is going to be 8. I congratulate you, you've all pissed me off to no measurable end.

Jotaro said something in his monotone voice that you completely disregarded to insult him.

(Y/N): Jesus christ Stephen Hawking's voice box emotes more than you. Good god show some fucking emotion! I've met rocks that have more emotion than you. You know what I'm tired of fighting you and your goddam family, so.

You took your suit off and shook the dust off before putting it back on, transitioning into your other personality as it changed into a yellow cloak.

Terumi: I'll deal with you instead.

You pulled out one of your knives and stabbed one through the heart.

Terumi: Not even worth my time.

You pulled it out and used it to slash some purple vines that were coming towards you. You looked to the origin and saw an old man in a fedora.

Terumi: What do you want old fart?

Joseph: Weren't you ever taught to respect your elders you little shit?

Terumi: I'm, older than you. By about 1500 years.

He remained silent as you ran forward and drove the heel of your foot into his head and stomping every solid in his body into either powder or mush.

Terumi: Senile old fool. Who's next!?

A blonde threw the next punch. You stood there with an unimpressed look on your face. You caught his fist and proceeded to break his arm.

Terumi: DIE. Weak, little, small fry idiot!

You smashed his legs and moved on.

Terumi: NEXT!

Meanwhile Issei is still getting his ass handed to him by the same boxer from earlier. Your next opponent was riding on a horse. You stood there, pulled out your revolver and fired a shot into the jockey.

Terumi: Saved the best for last I guess. (cackles hysterically) Unholy Wrath...of the Basilisk! Hehe hehe hehe hyahahahaha!! 

After you had decided he'd suffered enough punishment you transformed into this.

Susanoo: I will show you... the true hand of god!

And with that ending note you cut him clean in two and turned back to your normal self.

(Y/N): (sighs) Another mess from my other half that I have to clean up.

You dragged all the bodies into one pile outside, took a bottle of lighter fluid from your suit, sprayed it on the pile, and lit a match. When that was done you looked behind you to see all the villains you'd fought for were nodding.

DIA: Should we now?

Pucci: I see no reason not to.

(Y/N): Wha?

Before you could say anything else you felt a blow to your temple and afterwards saw nothing but black. When you came-to you found yourself being smothered by women. You, honestly had no regrets or objections to this, so you accepted it and enjoyed the warmth radiating from them falling asleep in the process. But wait. What happened to Issei the pervert? We see him being dragged by two demons by his legs into a bedroom. Who were these demons? Why they were Scanty and Kneesocks.

In bed with them that night.

Scanty: Did you enjoy it?

Issei: I liked what happened.

Kneesocks: Good. Let me get the lights.

The room went dark.

Issei: (screams). I LOVE it.

~Cringe~

I have nothing to say for myself.