Synopsis

When life as an adult brings tough jobs and being bullied at work, many people dream of going back to their carefree childhood to make better choices. That’s exactly what 27-year-old Arata Kaizaki is thinking as he’s offered a unique chance to change his life.

After work, a man named Ryou Yoake from ReLife Research Institute talks him into joining a one-time experiment. This experiment will help Arata overcome his work problems and get back into the corporate world. Part of the deal is that Arata gets turned back into a teen, and for a year he’ll live high school life all over again. But there’s a job waiting for him at the end of the experiment, a job he’s been trying to get since leaving his first company.

With no other choices, Arata agrees to try the plan. But he’s grown up now, and it’s been a while since he was in school, so high school life turns out to be more challenging than he expects.