Hasegawa Kouta is a completely average second-year high school student. He feels as though something is missing in his life and that it's impossible for someone like him to have a shining school life. Then one day, as he's out with his friends, Kouta encounters a missing little girl and she gives him a Pompompurin sticker for helping her find her mom. This reminds Kouta about how he used to love Pompompurin as a kid, especially because of the giant stuffed Pompompurin his beloved grandmother gave him as a birthday present, but was forced to cast that aside due to peer pressure. However, at school he picks up a lost My Melody keychain and realizes it might belong the very flashy and popular Mizuno Ryu, how is this possible?
Girl, girl, Kouta's a girl!
!فتاة، فتاة، كوتا فتاة
Mädchen, Mädchen, Kouta ist ein Mädchen!
¡Niña, niña, Kouta es una niña!
¡Niña, niña, Kouta es una niña!
T’es une fille !
Kôta est une fille !
Femmina, femmina, Kouta è una femmina!
Kouta, menininha, menininha, menininha!
Девчонка, девчонка, Кота — девчонка!