A pioneering roboticist awakens in 2025 after decades in cryosleep. To change the past and reunite with his adopted sister, he seeks a way back to 1995.

Sato is an employee conducting a survey in front of Sendai Station. Saki takes the survey and the two ultimately become a couple. 10 years later, Sato proposes to Saki…

Dr. Ichito works at Honjo Hospital. His longtime friend Dr. Tatsuya Shindo, who comes from Tokyo, begins working at Honjo Hospital. In their university days, Tatsuya was referred to as…