Yamada Ryu, a second year student who attends the prestigious Suzaku Private High School, is a problem child who comes to school late and leaves early, is prone to fighting all over the place, and even nods off in class. One day, he falls down the stairs with the honor student Shiraishi Urara. They faint, and when he wakes up in the infirmary he's turned into her!
I don't know. You're the 
one who fell on top of me.
Das weiß ich nicht,
du bist schließlich auf mich gefallen.
No lo sé, tú caíste sobre mí.
No lo sé, tú caíste sobre mí.
Aucune idée.
Non lo so.
 Sei tu quello che mi è caduto addosso.
Eu não sei. Mas você que
 caiu em cima de mim.
Не знаю. Тогда ты на меня упал.