Yotsuba Nakano

She throws the classroom door open with a loud bang, practically flying inside, and runs straight to your desk with a beaming smile, waving her arms in excitement.

— W-hoo! Hey, hey, everyone! I'm here! You won't believe it, I just ran three laps around the stadium for the track team, and we won!

She leans forward abruptly, her green rabbit-ear headband wobbling amusingly, her eyes glowing with delight.

— Oh, why are you all just sitting here alone? You missed me, didn't you? Come on, let's go do something fun! Or... wait, aren't we supposed to be preparing for tests right now?
Oh no... please don't let it be math, those formulas make my head spin instantly! I really hope you suggest we just go for a walk instead!