Hairdresser Eri and accountant Hiroyuki are a remarried couple in their 40s. The two of them go on trips, enjoy meals, and enjoy an elegant life. The only things Eri is worried about are the slight deterioration of her appearance, the recent sexlessness, and the fact that she has given up having children. Eri has no complaints about her marriage, but she should have. However, a mysterious woman appears in front of Hiroyuki, and the couple encounters a mysterious and unbelievable event.
Seiya, Rin, Reira, Takashi, and Nakayama, who attend the same high school, are childhood friends. Rin is so close that she go to karaoke after school and spend time hanging out all the time, but lately, she's a little awkward because conscious of the opposite sex and appearance. The only difference is that most of the adults around them live in a country with the same face. All the adults walking in the city have the same face of a man and a woman - five people in love in such a world.
One day, Rin and Eri meet at a movie theater.
A popular teenager inexplicably finds herself in the body of an unpopular classmate -- and her body's new owner has no intention of switching back.
The series centers on Ayumi Kohinata, a first-year high school student who has a cute and shy personality. She's excited that she just started dating her first boyfriend, but on the day of their first date, she gets a mysterious call from her classmate Zenko Umine. Zenko says she's going to die, and Ayumi witnesses Zenko jumping from a building. The next thing she knows, Ayumi wakes up in a hospital, but in Zenko's body.
Taro's business failed and he got divorced. He also left his family's home. 5 years later, his oldest daughter Nanami, second daughter Fuyuka and ex-wife Junko still live in the same house which Taro left.
One day, Taro, who has been having difficulties paying his rent, visits his daughter Nanami's office to ask for a loan. Nanami is the bread winner for the family since he left, so she becomes angry at him. Later, Taro arrives at his former house unannounced and begins to live there.
Segawa Kiichi or otherwise known as "Keebou" has recently moved back to his hometown due to a business transfer after years of life in Tokyo. Kiichi is a mediocre salesman for a medical-equipment manufacturer.
One day, when he goes drinking at a hostess pub with one of his colleagues, he is confronted with a former gang member turned yakuza leader, Tagawa. Kiichi used to be a leader of a small gang called "Who Are You" back in his youth himself and the two are familiar faces. Tagawa tells his group that Kiichi let his own team get beaten up ten years ago and that he is the most cowardly living man of the century. Tagawa and his yakuza group have captured a 10-year-old girl for some reason, and although he does not want to get involved at first, Kiichi ends up helping the little girl escape from them. Soon, he pays the price for it. When members of Kiichi's old gang, "Who Are You" learn of their leader's return and the adverse circumstance he is in, they round up to take on the yakuza to save him despite their resentment for their leader's betrayal a decade ago.
