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!
After all, if you think about 
it, it had to have originated
Ausgelöst haben kann
es jedenfalls nur …
Después de todo, si piensas en el asunto,
Después de todo, si piensas en el asunto,
Après tout,
Dopotutto, se ci pensi su, 
tutto ha avuto inizio
Afinal, se pensar bem,
 isso só pode ter acontecido
Если подумать, это случилось