3rd Person POV:

With the first year of hero school done Yn returned to his hometown with Lisa and Healy.

Yn: Ugh! I'm bored...

He groaned in Lisa's backyard, with her and Healy.

Lisa:(playing on phone) Then do something.

Yn: There ain't anything to do...

Yn: I know! Let's go to the beach!

Lisa: We're landlocked dumbass.

Yn: Tch...

Healy: Isn't there a waterpark in the town?

Lisa: It doesn't matter, I don't have a swimsuit that fits anyway...

Yn: Then just transform your doppelganger into a swimsuit.

Lisa: I can't change its shape.

Yn: Why not? Have you tried it?

Lisa;...

Lisa: Let me enjoy my summer.

Yn: Come on, you can play on your phone any day, anywhere! Let's do something together!

Lisa:... Healy, do you have a swimsuit?

Healy: N-no...

Lisa: Would you look at that, looks like we can't go.

Yn: If I buy you two swimsuits will you do something with me?

Lisa: Fine, but tomorrow I want to be left alone. Got it?

Yn: Yeah, yeah.

Yn: Let's go already!

Grabbing them by the hands, Yn drags the two girls to go buy them what they need for a day at the pool.

(Opening theme)

Yn: 100...101...

Doing handstand push-ups in the women's clothing shop, Yn waited for his friends to find their swimsuits whilst the women in the store stared oddly at the boy.

Lisa:(Muffled) What are you counting?

Yn: The seconds it takes for you to put on a very easy piece of clothing.

Lisa:(Muffled) We're trying multiple sets, dumbass.

He begins balancing on one hand.

Yn: It shouldn't be this hard.

Lisa:(Muffled) We've been in here for less than a minute!

Yn: More.

(Slam)

Lisa: There- why are you- you know what I don't care.

Yn: Hey, not bad. Healy, how about you?

Healy:(Muffled) I-I don't really think bikinis are my thing...

Yn: Show us! Show us!

Healy walks out.

Lisa:... Cute.

Yn: Perfect. Let's rock.

Healy: D-do you really think so Yn?

Lisa: Don't ask him. You could be completely naked and he'd probably not care.

Yn: The human body is a natural thing, there isn't really anything to care about.

Lisa: You'll understand when you're older.

Yn: Hey! What's that supposed to mean?!

Lisa: You're a child.

Yn: I am not!

He walks on his hands to the cashier to pay for their outfits.

The trio heads off to the water park to enjoy a splashing day.

Lisa: Hey, you didn't invite us to swim so you can practice that "set yourself on fire" move.

Yn: No... But that is a good idea...

Lisa: Don't try it.

Yn: I'm not stupid. Until Flashback answers my messages, I'm not risking it.

Healy:... Wh-what was it even like using that... "Ability".

Yn: What was it like? Uhmm... It felt like...

Yn: Every muscle in my body was being ripped apart after eating super spicy food while I was sitting in a sauna in the dessert.

Yn: And really unnatural... I could just feel how my body was like "Nope, this is not right".

Lisa: You really shouldn't have gone that far.

Yn: Hey, Healy was in trouble. I had to go all out to save her.

Healy: Y-you don't have to risk your life for me...

Yn: I didn't save you just so you could die at the hands of another villain.

Yn: So don't worry. If you're in danger, I'll come, fist-a-blazing to save you.

Healy:(blushes) Thank you...

Lisa:...

Yn: That goes for you too, Lisa.

Lisa:(Sarcastically) What a prince.

(Crash)

Yn/Healy/Lisa:?

Hearing heavy stomps approaching, the three looked around before seeing a large hulking man with sickly skin wearing a torn-up super-suit that revealed strange markings.

(Hero name: The Incredible Musculin/ Quirk: Stuff buff)

Musculin: RAAAAHHH!!

They watch him run straight into a wall.

Healy: Should we call the cops.

Lisa: Hold on. (Grabs Yn)

Lisa: Yeah, go ahead.

Yn: Hey!

Lisa: You can't use your quirk, you don't have a license. Best to leave this to the authorities.

Yn: I don't need to use my quirk to kick someone's butt.

Lisa: Well too bad I have you in my grasp. Like hell, you're getting near them. I don't want to get another lecture about keeping you from doing something stupid.

Yn:...(chuckles)... Do you think you can hold me here like this?

Lisa: I'll tell your mom if you judo flips my ass.

Yn/Lisa:(glares)

Healy: Uhmmm... Guys?

Pointing at the man, Healy shows the two how he was consuming chunks of the wall, growing more muscle mass.

Musculin: Where are you!?

He stomps the ground, making a small tremor before kicking a car that nearly hits a mother and child.

Yn: Alright, that's enough.

Lisa reluctantly agrees and release Yn.

Yn: Hey! Big guy!

Musculin: Hm!?

Yn: You better calm down right now or we're gonna have a problem!

Musculin: Where is he!?

Yn: Your boyfriend? Your taxi driver? Be more specific!

Musculin: Fright-Train!

Yn: Never heard of him!

Musculin: RAH!

He attempts to run past Yn, however, he trips the hulking man by kicking him in the back of the knee.

Yn: You ain't going anywhere until the cops arrive.

Yn: Which are on their way...(looks at girls) Right?

Healy:(pulls out phone)

Yn: Come on-whoa!?

Musculin grabs Yn and lifts him off the ground.

Musculin: Where is he!!?

Yn:(gags)... Ugh! You smell like rot- AGH!

He tightens his grip.

Musculin: ANSWER ME!

Yn:(smirks) I only have one thing to say to you... "TIMES-

Musculin is struck across the head, getting knocked aside, as ge drops Yn.

Yn: Huh?

The trio turns to Yn's savior.

Jen:...

Yn: Mom?

She tosses her groceries to Yn.

Jen:(points to girls) Wait there.

Yn: But-

Jen: Do you also have a quirk license? No? There. Now.

Yn:... What are you going to do?

Jen: He manhandled you. So what do you think? I'm going to kick his ass.

Yn:(gasp)

Lisa: Wait what...?

Jen approaches Musculin.

Jen:?

Jen: Wait a minute... Didn't you die- Ah, what do I care...? That just means you already have a grave ready for you.

She takes a fighting stance as Musculin stands up and roars.

(Jen vs Musculin)

Musculin having lost all sense of reason, rushes towards Jen, throwing a punch at her.

The master of martial arts spun towards him, dodging to punch whilst elbowing his gut.

Musculin attempts to bear hug her, however, she ducks and rolls away, kicking his crotch in the process.

The hero then wildly swings his arms around, Jen like a ballerina steps back from each hit with elegance, before going low and rising up with a fantastic spinning hop onto a bench.

Leaping over towards Musculin, Jen helicopter kicks the hero across the face, then back flips off of him back onto the bench.

She then picks up the bench, spinning around with it to build momentum, before smashing it into Musculin's chest like a baseball bat.

(Crash)

Musculin stumbles back as Jen unleashes several attacks across his body.

Musculin: GHA!

Swatting at Jen, he manages to hit her, but the ex-world champion of quirk combat held on to his arm as it stretched all the way out.

Activating her Quirk, Jen pulled Musculin's arm even further back, then palm striking his shoulder plate.

(CRACK)

Musculin: GHAAAA!!

His arm went limp. Jen kicked the hero in the back of the knee, forcing it to bend and him to lean back onto Jen who lifted the hero over her head.

Walking over to a wall, Jen began slamming Musculin's head into the wall.

When she saw blood on the wall and Musculin stopped squirming, Jen dropped him onto her knee with a loud crunch.

(CRUNCH)

Grabbing Musculin by the beard, Jen glared at him.

Jen:(Whispers) You don't touch my fucking son. Got it?!

She then tries to walk away, but Musculin grabs her leg, reaching his jaw out to try and take a bite only for Jen to use her other leg to kick his jaw off.

Yn/Healy/Lisa:!?!

Healy:(gags)

Jen:(spits on Musculin)

Healy rushes over to puke into a trash can as Jen walks over to them, Musculin seemingly stuck in a state of disbelief.

Yn: Jesus Christ, mom!

Jen: Not my fault mister zombie has a glass jaw.

Lisa: That wasn't really heroic.

Jen: That's because I'm no hero.

Lisa:...

Lisa:(Whispers) Your mom is fucking scary...

Yn:(Whispers) Try living with her.

(Ending theme)

(Bios)

Hero name: The Incredible Musculin

Name: Derry Gulf

Age: 73

Birth: 02/08

Quirk: Stuff Buff

*Consuming materials increases Musculin's muscle mass giving him enhanced strength.

The boost to muscle mass last 5 minutes before fading.

History: A prominent hero 25 years ago, Musculin died in battle with his archenemy Fright-Train in Los Angeles.