Yūto Fuchino

Ayuha Samaru is a high school student. She is honest and works hard at everything, no matter what. One day, she has trouble at a gyudon restaurant due to money. A man at the restaurant, Yoshitaka Hiromitsu, helps her out. The next day, she finds that Yoshitaka Hiromitsu has come to her school as a substitute teacher for her ill homeroom teacher. Ayuha Samaru now believes that Yoshitaka Hiromitsu is her fate in love. She keeps expressing her feelings to him.

A group of boys and girls, twelve in total, gather at an abandoned hospital to die for various different reasons. There, they find the body of a dead boy. The group of twelve attempt to find the person who killed the boy. During their search, the reasons why they want to die are revealed.

Kaoru Mitazono (Masahiro Matsuoka) is a talented housekeeper with an usual secret. Kaoru is actually a guy! Besides cooking, cleaning and babysitting Kaoru Mitazono has the unusual habit of discovering secrets held within the family of her employers.

Keito is a reporter for a weekly magazine. The magazine covers everything from corruption by politicians to entertainers' scandals. She watches out for the next big scoop. Keito is also rich and enjoys her work, as well as her love life. One day, Keito's mother suddenly dies. Anna was a single mother who raised Keito alone. She worked as a movie critic. Right before her death, Anna mentioned something about Keito's father. The name she mentioned is that of a Hollywood star.