Sie waren jung, frei und über beide Ohren verliebt. Als Teenager lag ihnen die Welt zu Füßen. Doch als Erwachsene scheint ein bedeutendes Puzzleteil ihres Lebens zu fehlen.

One day Mio attends a middle school reunion and is reunited with her first love, Shuichi. Her love is rekindled when the guy approaches her, but they get caught up in an incident where members of the reunion start dying one after another.

Nana and Shota are a newlywed couple and Nana is 15 years older than Shota. Nana works as a designer and Shota works as a gym trainer. They both enjoy mystery. The newlywed couple then move to an apartment and they attend a resident’s meeting there. Nana and Shota become involved in murder cases that take place at the apartment. Residents get murdered one by one. Some residents have a motive, but those suspects have an alibi. Because of this, an arrest has yet to be made.

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."

Mishima Futoshi, ein Schüler aus der Heisei-Ära, wurde von seinen Klassenkameraden schikaniert. Der Grund war, dass Mishima „schwul“ aussah. Mishima mochte eigentlich Männer, also wehrte er sich nicht und seine einzige Quelle des Trostes war heimliches Cross-Dressing. Eines Tages, als Mishima auf dem Dach ist, sieht er, wie Kirino, der Anführer der schikanierenden Gruppe, den Lippenstift hält, den er zuvor verloren hatte. Er ist gerade dabei, den Lippenstift, den Mishima verwendet hatte, auf seine eigenen Lippen aufzutragen ... Dies ist die derzeit meistgesuchte Coming-of-Age-Geschichte über Jungen, die nach einem Ort in dieser Welt suchen, an dem sie ihr „wahres Ich“ sein können.