A Record of Tennis Players Turning Dark

This is the thirteenth time I've restarted my miserable life. This time, can the Rikkai University Junior High tennis team win sixteen consecutive Kanto titles and three consecutive national titles, beyond all doubt? Reader's guide: 1. As the title says, the gloomy protagonist was driven to darkness by superpowered tennis. He's a "genius" whose tennis skills have been maxed out after twelve loops, and he's at this maxed-out level from the start. The matches make for a satisfying read. He's in the same year as Yukimura and the others. The protagonist is flawed. Repeatedly crushed by true geniuses, he still thinks the world should bow to him and refuses to make peace with himself. He's stubborn. 2. No pairing. Primarily set in the Prince of Tennis world, possibly with a little bit of Ao Ashi (the soccer series) and a modified version of the Rebooting Life premise. I haven't decided yet, but if it becomes a crossover, those elements will probably be minimal. Theme: Hard work