Except for her red hair, Youko Nakajima is a typical, obedient Japanese high-school student. Her life is fairly ordinary—that is, until Keiki, a kirin in the guise of a blond-haired man, tells her that she...

The story is about a pair of twin brothers who were separated from each other at birth and raised under different circumstances. The twins first see each other as enemies but gradually become friends and eve...