Omniverse Yin-Yang System

Yin alone cannot give birth, and yang alone cannot grow! This is the great way of heaven and earth!

First world: Prince of Tennis:

Seigaku's doubles are its weak point?

No!

After we join Seigaku, its doubles team will be the strongest!

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.