Film and Television Starts with Recruiting Troops

An ordinary high school student was overjoyed when he gained the power to travel through time one day. After a while, I had another plug-in, a loyalty system, and those who were loyal to him would become die-hard loyalists. So he began to conquer the world, slowly growing up, solving things he couldn't stand, and becoming a truly free man. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.