Arata Kaizaki (Taishi Nakagawa) is 27-years-old and unemployed. He quit his prior job after working for the company for 3 months. Arata Kaizaki decides to take part in a research program “ReLIFE.” He takes medication that makes him look 10 years younger and he is to attend high school for a year. There, he falls in love with female high school student Chizuru Hishiro (Yuna Taira).
Based on the manga series “ReLIFE” by So Yayoi (first published from October 12, 2013 via free comic app comico).
Filming begins November, 2016 and finishes February, 2017.