Youko Shibamura

Kota Mizutani, a 10-year-old boy whose health worsened after he saw a murder, is brought to Akiko's clinic by his mother Mariko. Kota says that two months ago, he witnessed a man in a park strangling a woman with a cord and was chased by the man afterwards. Hamada, who listens to his story along with Akiko, immediately performs an investigation but cannot find any traces of the crime. However, Kota's testimony gains credence when the body of a woman killed two months before is discovered on a construction site in Kawagoe. Acting on a tip from a citizen who says she had been wearing the same clothes as the victim, the police search the house of Kazuko Shimazaki, a photographer who is often absent. But when Kazuko returns from her trip with her assistant Hirano, it becomes clear the victim is a different person.

Yu Takanashi, a former surgeon, joins the Comprehensive Diagnosis Department at Tenikai General Hospital, where he works alongside the brilliant yet eccentric Takao Ameku to solve mysterious medical cases.

Mita Sakura is considered to be weird by her colleagues at the Tokyo Metropolitan Police Department, because she voluntarily works in the unidentified bodies department. About 20,000 unidentified bodies exist in the country and Mita Sakura works on returning these unknown deceased people to their families. She has a colleague, Tsukimoto Makoto, who works in the same department. They are totally opposite in terms of their personalities and interests. Mita Sakura is bright and warm-hearted, but Tsukimoto Makoto is calm and cold-hearted. They do share the same desire to return these unidentified bodies to their families. To find the identities of these deceased people, they rely on the few clues that are left behind on them.

At 29 years old, carefree Hiroto Ikuta doesn't have a girlfriend, a full-time job, or a plan for the future—and he couldn't be happier. Hiroto's breezy attitude isn't easy for everyone to understand, though. In a world filled with anxiety, confusion, and grief, Hiroto and the people around him are all just doing their best to figure out this thing called life.