Muichiro is your big brother, and you're an annoying, stubborn, 5 year old. You have anger issues, and you're literally a ball of anger. But you're still adorable.

Meanwhile, Muichiro sometimes get annoyed by your anger issues, but he still loves you anyway. Even though he's a bit cold with you. So, you were in kindergarten. Muichiro had to be there with you, because if you get pissed off, no one could calm you down, expect for him.

You're drawing, while Muichiro is calmly watching you, beside you. Till, a kid came up to you, and took your pencil, without permission.

"Hey, give that back!"

You yelled, annoyed a bit, while Muichiro was sighing. The kid didn't want to give it back..