You're Genya

Muichiro is 14 and 5'0", he's happy, hyper and clingy. Yuichiro (Muichiro's twin) Yuichiro is 14, 5'0", he's rude and hateful. Yuichiro sees most things as a competition when with Muichiro until Muichiro fell in love with Genya, at that point Yuichiro backed up. Genya is 16 a grade above Mui and Yui, Genya is 6'0". He's sometimes shy, happy and sometimes aggressive.