The Big Brother (MHA x Male reader)

Embarrassing the sister but also making her happy

After Y/N's fight with Kirishima he went into his next class and knocked on the door, but no one opened the door.

Y/N: "Hmm, maybe they're at lunch?"

You said as you walked toward your final class and it was your sisters.

Messages: Uravity

You: "Hey sis, your class ready?"

Uravity: "Yeah, I'll let the teacher know that we have a guest today, and is my name still Uravity?"

You: "Yeah, it think it'll fit for your hero name, yeah?"

You put your phone up as you knocked on your sisters classroom.

???: "Come in!" Someone said in a tired tone.

You walk through the door and you sister instantly looks away as you lightly chuckle.

Y/N: "Are you all ready to have me tell you about the wonderful things about U.A."

Most of the students cleared and others clapped all except your sister.

Y/N: "So, any of you want to try and take me down? It'll just be a quick spar? Anyone? how about the girl in the back with brown hair."

Ochaco froze as she heard that she was called out and slowly stood up and went to change into her gym clothes. The rest of the class along with you went outside and waited for your sister to walk out.

After a few minutes she came out and looked serious as she got ready to fight.

Y/N: "So you're ready sis? I won't hold back against someone who knows my quirk and my weaknesses!" You smirk as you sister nods and charges at you but you simply sidestepped her and she grazed your arm hoping you'd start floating because she used her quirk. She was dumbfounded as your arm plaiting started to float.

Y/N: " Sorry sis, I made a few changes!" You smirked as she tried to punch you but you simply took it head on and activate your quirk. 

Y/N: "Counter!" She slid back and was holding her glowing side as she charged at you again.

Ochaco: "Just let me have this!" she punched you in the gut and she had a tear going down her face as you nod a little and fall down holding your gut in "pain"and you signal that she's won. Some of he friends run over to her and congratulate her and seeing your sister smile made you smile as you stood up and left you sister with the rest of her class after giving the teacher application forms along with the date for the entrance exam.

Time Skip

Messages: Red Riot

You: Yo Kirishima, you gonna be at the entrance exam? If so I'll cheer you on.

Red Riot: Yeah, I was wondering if you wanted to hangout sunday, if you wanna we can go to the beach and you can help me train!

You: Haha, yeah I'm game and get ready, you'll be worked to the bone as I get you ready for the exam.

Red Riot: That better be a promise about working me to the bone and do you wanna help me make an Ultimate move like your "finish" move??

You: Once I think you're ready I'll help also I got you a hero name "Red Riot", just like mine, but it fits you more, also you should die your hair red, it'll fit!

Red Riot: Yeah, I like it, see you sunday!

You put your phone away as you picked your sister up from school and brought her home and after you went to talk with Kirishima.

Y/N: "Kirishima! Hold up!" You ran at him about half a mile from your house.

Kisishima: "Y/N? that you?"

Y/N: "In the flesh! I think we should start early, and you can crash at my place tonight, tomorrow is sunday."

Kirishima nodded and started walking with you to the beach so both of you can train, but to your surprise you both see Izuku.

Y/N: "Is that Izuku? Hey Izuku!!' You ran up to Izuku and a skeletal man that you knew was all might.

Izuku: "Y/N!! Uhhhhh HIde!" he told the skeletal man to hide as he and I chuckled then I signaled to Kirishima to turn around and he complies.

Y/N: "Long time no see All Might." You and All Might share a chuckle as Izuku was confused as he started asking questions.

After a long explanation Izuku understood and Kirishima was also in on the secret but if he spilt it you'd come after him.

Kirishima: "So, we're all gonna train together Right?"

Both you and Izuku nodded.

You had Izuku try running using One for All and he was able to without breaking his legs. He was able to hole One for All at 5% and he calls it Full Cowling. You taught Kirishima an ultimate move and he called it. Red Riot: Unbreakable.

After a long day of working out you all went out to eat and it was your treat.

They got what they thought was good and they both Enjoyed it.

Time Skip

You informed your mom that you're going to Izuku's house and Kirishima informed his guardians the same thing. You were at Izuku's house watching a movie in the living room then Kirishima had a "fantastic" idea.

Kirishima: "Hey Zuku, should we invite some girls over?"

Izuku: "I don't know Kirishima, my mom might not approve, but I'll ask her." Izuku went upstairs and talked to his mother about inviting some girls over and she approved.

Kirishima: "Hell Yeah, I'll text them!" Kirishima walked outside and called a few people and i could only hear the names. Momo, Tsu, and Mina.

A/N: Hey Guys! I had a lot of free time today and I updated two books today, I'm proud and I plan on making another book, yes another one. I'm only gonna give you this as a hint.

Y/N, the Whale Sin of Destruction.

Bye now!!