Kana Koumoto - a cheerful 17 year old who can often be a klutz and nosey. One day, while hanging out with her besties (Pets, Mossan and Hijiri), Mossan starts making a rocket using empty soda bottles. 
Are you 17?
Bist du zufällig siebzehn?
¿Tienes seventeen?
¿Tienes seventeen?
Tu n’aurais pas 17 ans,
par hasard ?
Per caso hai 17 anni?
Você tem 17 anos, é?
Тебе что, семнадцать?