You are in the mha universe with an immortal quirk

Your quirk makes you still look like a teenager in your early twenties, even though you're now nearly a hundred years old. Your quirk makes you immortal, yes, never sick, never old, and able to heal wounds instantly. It's powerful but it's as bad as a curse as you watch your loved ones, parents, siblings die one by one.

You just do it alone while sitting on a park bench and tearing bread for the birds as usual. But then you noticed Class 1a who were volunteering to pick up trash in a public park (Aizawa was the one forcing them, of course). You just stared at them silently and then turned back to your own business. All along And at the same time the voices of the students were heard. Oh, there's not just 1a, there's 1b as well.

Monoma:"Ha! 1a are suck! You guys have picked up less than one bag of trash right now!"

Bakugou:"SHUT UP! A PERSON LIKE ME WHO WOULD BE A GREAT HERO DOESN'T HAVE TO PICK UP TRASH LIKE YOU GUYS!"

Even though he said that, he was still picking up trash-

Iida:"Hey be quiet! This is a public park!"

he said as moving his arms around in strange chopping patterns

Kendo:"hey monoma shut up!"

izuku:"Why do you have to shout-"

You suddenly felt like someone tapped you on the shoulder, it was Todoroki.

Todoroki:"Sorry sir But here there is a sign that says it is forbidden to feed the birds."

Bakugou suddenly stopped behind Todoroki with several garbage bags in his hands.

Bakugou:"HA! Haven't you noticed?! old man! Do you know who cleans up the bird poop and bread crumbs you create?!"

Kirishima:"hey no need to rude bakugou.."

Aizawa:"Bakugo, you will have to meet me after school if you continue to behave like this..."

Monoma:"Wahahaha! That is what you deserve!"

vlad king:"you too monoma-"

Tokoyami sighed before looking at you.

tokoyami:"As Todoroki said.. There is a sign prohibiting feeding birds. So we would really appreciate it if you stop breaking the rules..."