Takamatsu Saki

Following the story of Ran, who confronts a mysterious organization by participating in a no-rules deathmatch after discovering her missing younger sister Yuzuki is involved in a crime. With danger at every corner, Ran must trade in her boxing gloves for brass knuckles. Will she save her sister?

Fukuura Koharu works at a child welfare office and plunges into despair overnight. Then she meets Daigo, a private-practice doctor raising his 8-year-old daughter on his own. She resolves to build a happy household, but things don't go as expected.

Minato Shindo has savant syndrome. His memory is amazing, but he has difficulty communicating with other people. When Minato was little, he dreamed of becoming a doctor. He met Doctor Akira Shiga and he wanted to become a pediatric surgeon. Akira was surprised by the 7-year-old's memory of the human organs and he decided to support Minato in achieving his dream. Eventually, Minato graduated from medical school and passed the national exam for medical practitioners. Now, Akira works as a director at a large hospital. He suggests to Minato to work in the pediatric surgery department at the hospital where he works.

It follows a group of people who are still living in temporary housing 12 years after a natural disaster called "Nani" destroyed their town.