Young, free and madly in love. As teenagers, the world was their oyster—but, as adults, their lives seem dimmer, like a very important piece is missing.

A proud young calligrapher is punished for punching a critic by being sent to a faraway island in the east coast of Japan. But as he meets and lives with the island's friendly people, his attitude begins to improve.

A mysterious woman appears in front of Otaro Dojima. The mysterious woman has a pale face with red lips. She kisses him and he dies, but the next moment he regains consciousness. He realizes he is now seven days in the past. The mysterious woman also follows him. Due to her kiss, Otaro Dojima dies and goes back to the past over and over again.

Suzaku Kanade is the scion of the Suzaku Group who is a bilingual "straight A" student with good looks and great athletic abilities. He is deemed a "celebrity prince" with graceful manners. One day, through his father's introduction, Kanade meets "bad boy prince" Kyogoku Takato who is a charismatic figure among the bad boys in the downtown area.

Kanade and Takato who live in completely different worlds and have totally opposite personality start to compete for an "important thing".

However, Takato's little brother Kyogoku Ryu, student-union president prince Ayanokoji Aoi, dance prince Red - Tendo Koki, teacher prince Yuki Riichi, and beautician prince Sagasawa Haru also join the competition...

Professor Shirô Sakaki, a butterfly researcher, confesses to turning six young boys, including his own son Itaru, into "human specimens."

Bullied for his sexuality, Mishima copes by secretly cross-dressing—until a surprising discovery by a classmate changes both their lives forever.