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. 
B-Bro...
B-Brudersch…?
¿Fra…?
¿Fra…?
Fra quoi ?
F-Frate...
F-Fraternidade...