This Teacher Has a System: The More Shameless He Is, the Stronger He Gets

I'm Lin Chen, a legendary former special forces instructor. Now I'm a high school PE teacher who sleeps through class and runs his mouth, and the whole school has named me the "most useless teacher"?

No one knows that a blood-jade thumb ring fell from the sky and awakened the Unorthodox Cultivation Manual System in me: the less serious I act, the stronger my cultivation gets!

From then on, everything goes completely off the rails!

Staying up all night gaming equals practicing all night! Mouth off to the principal and my experience skyrockets! I can even build up my cultivation by insulting people?!

And the students I've taken in are more outrageous than the last!

A girl with depression is enlightened by a few words from me and awakens a Berserker Constitution: the more she's injured, the stronger she gets!

A chubby girl who's insecure about her weight is encouraged by me to "eat all she wants," and ends up becoming a human power bank who restores the whole team's mana!

There's also the bookworm who couldn't hurt a fly, who grinds through practice questions until he develops sword energy powered by computational ability; and the rebellious teen who turns street brawling into an ancient martial art!

The orthodox sects of the arcane world call me an evil heretic and want to cripple me and all my disciples? The Order Committee brands me the most dangerous man alive and puts the whole city on the hunt for me?

But when rifts to another world tear through the city and the ancient gods are about to descend, with every expert in the world helpless to stop them...

Sorry, but the only ones standing between the apocalypse and the world are me and my bunch of "problem students"!

They say I'm never serious?

Then let me show you what it really means to save the world by being completely unserious!