Semi x reader

Old friend

Tomorrow...
You and Aki were going on the breakfast when suddenly someone bumped into you.
You:He-Rintaro?
He turned around.
Suna:Do we know each other?
You:God,you always had a bad memory.It's me Y/N.
Suna:Wait...Y/N...Oh!That is you?
You nodded.
Suna:Damn I haven't seen you since kindergarden.
You smiled.
You:Yeah...
Suna:So who's this little boy with ya?
You:Oh that's my little brother Aki.
Suna:Oh I didn't know you have a brother.
Suna kneeled down to see Aki's face.
Suna:What's your name kiddo?
Aki:I'm Aki!
Suna:Well nice to meet ya Aki I'm your sister's future husband-
You hit Suna in the head.
You:RINTARO!
Suna:I'm joking,I'm joking.
Aki:So does that mean you and big sis are together now?
Then Semi was passing by and heard that.
Semi's mind:W-What?
You:N-No!Of course not!
You turned red.Suna laughed.
Suna:Well see ya later N/N.
Semi's mind:N/N...
You:Y-Yeah...See you.Let's go Aki.
You took Aki's hand and about to go to eat but then...
Semi:Y-Y/N!Good morning!
You turned around.
You:O-Oh Semi,morning.
Semi:What's up?
You:Ah nothing,I just met my childhood friend.
Semi:O-Oh,nice...
Then Tanaka and Nishinoya came from somewhere with Yamamoto.
Tanaka:You're again with Y/N-san!
Nishinoya:DO NOT TOUCH HER!
Yamamoto:Get away from Karasuno pretty female manager!
You sighed.
You:Oh my goodness...
You glared at them.
You:Go eat or I'll tell coach to give you double practice...
They ran away.
You:Sorry-
You looked at him.He couldn't stop laughing.You blushed and smiled.
You:Okay boys I'm really starving now let's go eat pleaseeee!
Aki:Let's goo!
Semi:Yeah.
You went to the canteen.You sat on the seat.Then Suna came and sat on the one side and Semi sat on the other side.They glared at each other.You felt uncomfortable.
Semi:Y/N you can have my pudding if you want.
You:No no nee-
Suna:Yo,N/N here's my cookie.
You:No-
Semi:No Y/N take my pudding!
Suna:No,my cookie!
Semi:No!
Suna:Yes!
Semi:No!
Suna:Yes!
Semi:N-
You:Enough!
Everyone in canteen looked at you.
You:I don't know what's wrong with you two?!
You got up and sat with Kiyoko,Asahi and Aki.Asahi got scared.
Kiyoko:Y/N what's wrong?
You:Semi and Rintaro are acting weird.
Aki:They like you big sis!
You were shocked.
You:Aki what are you talking about?
Aki:Well in one cartoon there are girls that are in love with one boy!So maybe big bro Semi and Rintaro are in love with you.
Asahi:Lord have mercy on little Aki...