I, the tennis king, create the strongest era

Xu Feizhi traveled to the world of Net King, came to the year before the timeline, and became the biggest bad guy of Fudo Peak.
Possessing the computing and analysis ability of a supercomputer and ceiling-level talent, he beat up coaches, kicked seniors, and became the new minister and coach.
Write a new legend with the attitude of the Great Demon King!
The reawakened [Kyushu Twin Heroes] Tachibana Yoshihei, and the [weird boy] Akutsu who is also a bad boy, want to prove their rebellious boy Yuta Fuji...
All the talents gather at Fudo Peak, starting from the regional preliminaries, to create the strongest era!
National competition, u-17, World Cup, become the out-and-out dark horse, dominate the whole country!
Tezuka: "Even if I concentrate on it, I am not his opponent."
Yukimura: "Any title will look ridiculous in front of him."
Coach Mifune: "This guy let me know for the first time that people in black uniforms are not all trash."
Byodoin: "My Overlord Tennis is so powerless in front of him."