When he was 26 years old, his lover passed away due to illness. He was so heartbroken that he stayed in the cemetery for three days and three nights holding her grave. On the fourth day, he got on the train home and fell asleep in the car. He unexpectedly went back to his 17-year-old sophomore year in high school.
A week later, a transfer student arrived in Experiment 1.
Purpose: Travel back to your boyhood with the regrets of adulthood and meet your lost lover again