Izuku: I am Groot

Inko: no problem honey, just be sure to take more care of her, she's a good dog

Inko said as she pet the side of Cosmo, causing Cosmo to wag her tail happily

Flashback

Inko: y-you can talk? AHHHHH!

Cosmo: i-i can talk? I-i mean, you can understand me? Are... are you a dog?

Inko: no I'm not... ok ok... just... breathe... your son has a talking dog... is... is that your quirk?

Cosmo: quirk? What's that?

Inko: it's... its a special power your born with, that usually awakens when your 4...

Cosmo: ohhhh a kink

Inko: w-what?

Cosmo: a kink, isn't that what it's called?

Inko: no honey, they are called quirks, so... I think I should try taking you to the vet to see what quirk you hav-

Cosmo: NO!

Cosmo shouted while running underneath the dinning table

Cosmo: please... please don't... they'll take me away...

Inko: who will?

Cosmo: they will, those awful humans... they took my friend that seemed to also have a quirk and tested him... I don't know where he is now... but I'm afraid of what they'll do to me if they find me...

Inko: it's ok... I'm not taking you anywhere, your a good dog, and I won't let anyone harm you ok?

Cosmo smiled as Inko hugged Cosmo, Cosmo giving Inko kisses to her cheek

Cosmo: please don't tell master... I want to tell him on my own if possible

Inko: alright

Flashback over

Izuku waved Goodbye to his mom as he, Kinoko, and Cosmo walked to the dog park

They all had fun, Izuku throwing sticks for Cosmo to chase and bring back as Kinoko joined in on and off, all of them laughing and having fun

One week later

Izuku was playing with a rope with Cosmo as Inko rushed in

Inko: IZUKU! ITS HERE!!!! FROM UA!!

Izuku stood up and walked towards his mom

Izuku: I AM GROOT!

Izuku grabbed it and opened it right in front of both Cosmo and Inko

All Might: I AM HERE!

Izuku: I am Groot?

All Might: hello young Midoriya, it seems you have gotten 60 villain points in entrance exam

Izuku: I AM GROOT!

Izuku said excited

All Might: that alone would have gotten you into UA... but there is a little something extra... there is a little thing called rescue points, you get extra points for saving people. And by destroying that zero pointer, you rescued a lot of others, earning up to 60 points there, so Midoriya, judging by your tests, you should know what 60+60 equals

Izuku: I-I am Groot

All Might: you earned first place with a total of 120 points! Welcome to your hero Academia... wait how many more of these-

The video turned off

Izuku then hugged his mom in excitement chanting the only thing he can say

Inko: i know I know Izuku, your in UA. I'm so proud of you!

Cosmo jumped up and ran in circles

Kinoko then called Izuku who picked up

Izuku: I am Groot?

Kinoko: EEEEEEE IM IN UA! ARE YOU IN UA? OF COURSE YOU ARE IZUKU SHROOM!

Izuku: I AM GROOT!

Kinoko: YAHAHA! Thanks Izuku, I'm glad you were there for me, I don't know if I would truly be in UA if not for your help... I think you even brought me out of my shell more shroom

Izuku: I am Groot

Kinoko: hey Izuku?

Izuku: I am Groot?

Kinoko: n-nothing, nevermind

Kinoko hung up blushing to herself saying shroom over and over

Izuku: I am Groot

Inko: she made it as well? That's great to hear, now Izuku, don't go getting me grandchildren yet with that girl, I don't want to be a grandma yet

Izuku: I-I am Groot! I am Groot?

Inko chuckled: yeah... I don't even know if you can though either Izuku... I mean... you walk around naked technically... there isn't anything there anymore... my grandchildren... *sniff*

Izuku rolled his eyes as he realized his mom started to mess with him and hugged her before going back to playing with Cosmo

???: I will find you Cosmo... I hope your ok...

It flashes over to the first day of UA

Izuku was walking with Kinoko to class and was having small talk about what it would be like, then he heard rustling in some bushes outside

Izuku looked to see nothing, and then pointed to the class 1-a dorm

Izuku: I AM GROOT!

Izuku shouted as he ran to the door, almost able to touch the top... well, he would if he went Kaiju mode

Izuku took a breathe

Kinoko: excited huh shroom?

Izuku nodded at Kinoko

Izuku opened the door and looked inside to see

Iida: keep your feet off the desk young sir, that is very disrespectful!

Bakugo: tsk, I'll do whatever I want, go shove a stick up your ass somewhere else

Iida: *GASP* HOW DARE YO-

Kinoko sprouted a mushroom that should have calmed them down quickly to stop the fighting

Kinoko: s-sorry for using my quirk, I just wanted to stop the yelling... it hurts my ears

Iida: n-no, my apologies, I should never have acted like that

Uraraka: heyyyy, that's the same guy who saved me, thanks... Groot right?

Kinoko and Izuku turned around to see Uraraka

Kinoko hugged Izuku's arm as if to tell the other girl to back off and then asked Izuku something

Kinoko: who is she Izuku shroom?

Izuku: I am Groot, I am Groot

Kinoko: you have no clue, you probably saved her... ok I believe you

Kinoko said before walking away and sitting down

Uraraka: wait, you say stuff other than I am Groot?

Izuku: I am Groot

Uraraka: wait... is it like a different language?

Izuku nodded

Uraraka: cool!

Aizawa: if your gonna just stand there and talk, then get out of my class right now

Everyone turned to see a homeless man in a sleeping bag on the floor

Elsewhere on UA

Cosmo is seen leaving some bushes and sniffing the floor

Cosmo: where are you master? *sniff* wait... that smell... *sniff sniff*

Cosmo then ran into a direction and ran straight into a wall of Cement...

Well, Cementoss

Cementoss: what's a dog doing in UA? *sigh* better call the pound-

???: wait!... Cosmo? Is that you?

Cosmo then opened her eyes wide

Cosmo: N-Nezu!