After graduating from university, Kaizaki Arata (played by Daishi Nakagawa) entered the company to work and officially became a member of society. However, it was not until this time that Arata realized that being a qualified member of society is much more difficult than being an excellent student. Three months later, Arata resigned and became an unemployed vagrant. He thought he could find a better job, but he repeatedly hit a wall on the road to job hunting. In this way, Arata had neither a job nor a friend to talk to, and his life almost entered a dead end. One day, a mysterious man, Ye Mingliao (played by Chiba Yudai) appeared in front of Arata. He told Arata that Arata was the NEET he had been looking for. There was a plan called "ReLIFE" that could allow Arata to return to society. Who knew that after Arata took the mysterious medicine given to him by Ye Mingliao, he actually regained his appearance when he was 17 years old.