Naho Toda

A community is shocked when the bodies of an elderly man and the manager of a home-visit nursing centre are found. The passing of 42 elderly patients is connected to Shiba, a caretaker recognised for his affection and dedication.

Physicist Manabu Yukawa returns to Japan from America. Detective Kaoru Utsumi visits him and talks about a case. The case is about a popular girl in a town who disappeared and, several years later, her body was found. A suspect was arrested for her murder. That suspect was previously arrested for another girl's murder, but he was released due to a lack of evidence. Detective Shunpei Kusanagi investigated the prior murder case. The same suspect was then released due to a lack of evidence for the most recent murder case. The released man returned to his town, where everybody hated him. On the day of the autumn festival parade, the man was killed. Physicist Manabu Yukawa, Detective Kaoru Utsumi and Detective Shunpei Kusanagi work together on his case.

A brain surgeon named Minakata Jin has spent the last two years in anguish, as his fiancee lies in a vegetative state after an operation he performed. One day, he faints at the hospital and awakens to find himself transported back in time to the Edo period. He is soon attacked by a samurai, but he escapes with the help of a man named Kyotaro. Kyotaro suffers a serious injury to the head while trying to protect him, but Jin manages to save his life despite a lack of proper medical equipment. Because of that, Kyotaro's sister Saki begins taking an interest in Jin and becomes his assistant. Meanwhile, Jin is determined to find a way back to the present.

Nobumasa Tsuboi (Yo Oizumi) runs a small factory in a small town. He has a daughter Yoshimi Tsuboi (Riko Fukumoto) who suffers from a congenital heart disease. A doctor tells Nobumasa Tsuboi that his daughter will only live for about 10 more years. Nobumasa Tsuboi is devastated that his daughter won't live past the ago of 20. Nobumasa Tsuboi and his wife Yoko Tsuboi (Miho Kanno) cannot accept the diagnosis. Even though he has no medical knowledge or experience, Nobumasa Tsuboi begins to study about artificial hearts.

With her gloomy demeanor, Sawako has a hard time fitting in. But when an outgoing classmate approaches her, life takes a turn for the better.