Tennis: This Is Crazy! Can Someone Keep This Freak in Check?

Tezuka Kunimitsu had a miserable past life. He ended up in prison and died young.

After being reborn, he learns that his world has been thrown into chaos by a group of people from other worlds.

Tezuka Kunimitsu vows to restore the original storyline. Urged on by the Anti-Character System, he goes from top student to a ruthless big shot who's even more ruthless with his hands.

His Grand Slam-level tennis skills and ceiling-breaking talent gradually become monstrous in the face of people with supernatural abilities.

Yamato Yuta, possessed by a transmigrator: I'm only in first grade, and you're using the Supreme Domain on me? The manga lied! Sob!

Fuji Shusuke, reborn: This is power beyond the dimensions? Are you trying to destroy the world?

Irie Kanata, who can bewitch people's minds: This guy's a monster. It's bad enough that my ability doesn't work on him, but he can even beat me up in return.

Later, Tezuka Kunimitsu runs into the captain of Fudomine, a guy called Aizen. The System immediately goes quiet as a mouse, not daring to make a sound.

Got it! He's the big boss who caused me to die young, right? I'll take him out!

System: Host, I told you to act out of character, not to turn evil!

Besides, this big shot is way out of our league!

This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Do not imitate.