Miki Takaraishi is a smart and beautiful 24-year-old woman, but her personality is not as good. She falls in love with Yuga Saito who is handsome and comes from a politician family. They see each other romantically, but Yugo Saito dumps Miki Takaraishi. To get revenge on Yuga Saito, she decides to run for prime minister. For her election campaign, she hires Toshiya Kadowaki as her campaign strategist.

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.

Hard-working Yuria runs a small printing company. Despite her best efforts, she can’t seem to attract the attention of Kazunari, a polite yet aloof client who is more interested in flirting with Mako, Yuria’s ditzy younger sister and employee. Meanwhile, Kazunari has his hands full with Takuji, his rough-hewn brother who was recently released from prison and is crashing at his apartment.