When I Traveled to the First Year of High School

The male protagonist, who has graduated a long time ago, suddenly begins to go downhill in his life. On unsatisfactory gray days, the male protagonist chooses to stay at home day and night, staying up late playing games and watching videos, but does not work. One day, after playing games for many days in a row, I suddenly returned to the beginning of high school. Relying on my memory, I suddenly cheated on my life. Not only did I counterattack and become a top student, I also made up for the regrets I had at that time. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.