Promoted to the Sports Anime Hero [Crossover]

[Opening on April 29, Zhongyuan Zhongya's birthday. Plot bunny left on April 17.] [Sports anime. Zhongya has no memories and no supernatural abilities.] As the God of Calamity reincarnated, the world's consciousness asked him: In your next life, would you like to be a supporting character or the protagonist? Zhongyuan Zhongya answered without a second thought: If I can be the protagonist, who the hell would want to be a supporting character? [A birthday fic for Zhongyuan Zhongya. No matter what the world is like, you will always be the one and only protagonist of my world.] Warnings: * Sports anime, no supernatural abilities. Zhongya is the only Bungou Stray Dogs character. Don't ask why there are no other Bungou Stray Dogs characters, because I don't want to write them. * OOC warning, tons of headcanons. I don't accept writing advice. If you think the characters are OOC, write it yourself. Don't come here and run your mouth. * To make the timeline more plausible, the Prince of Tennis story starts in high school. Theme: The stars may shine brilliantly above, but you still shine.