When Marimo forgets her lunch at home, her freeloading alien roommate Tomarin comes to deliver it. The girls decide to show Tomarin around Kameido High School, but for some reason school's a little unusual that day...
A game where you avoid the black 
keys and hit the white ones.
Es un juego de presionar los espacios 
blancos saltando los negros.
Um jogo em que você evita as teclas
pretas e acerta as brancas.