Seiichi Tsukimiya's body functions showed irreversible decline. Just when he was about to give up, a mysterious creature fell from the sky.
"Hey, do you want to make a deal with Ava?"
"As long as Tsukimiya can help lead Teyvat Academy to win the Kansai championship, national championship and world championship through playing tennis, Ava will help Tsukimiya's body."
"Don't you know how to play tennis? It doesn't matter. No one knows how to play tennis!"
"Ava doesn't know what mental power is. Ava doesn't know why your mental power has color."
"Elemental power is not spiritual power."
Reading guide:
1. There are many private settings, please don't enter if you mind, character OOC warning, I will edit the text.
2. The protagonist is in the same class as Kirihara, and he takes a break from school at the beginning + transfers to another school. This is essentially a cool story.
3. The background of Genshin Impact and the protagonist's original family are just to introduce the story, try to mention it in one stroke.
4. Main tennis, Teyvat as a country, u17 protagonist leads the team to appear in the global arena
5. The order of appearances of Genshin Impact characters depends on dice
Purpose: To actively exercise to change the world