This Teacher Has a System, the More Unorthodox He Is, the Stronger He Is

I, Lin Chen, am a former legendary instructor of the special forces, but now I am a physical education teacher in a high school. I sleep in class every day, have a mean and venomous tongue, and have been dubbed the "most useless teacher" by the whole school? No one knew that a blood jade finger ring falling from the sky actually made me awaken the "Reverse Cultivation Manual" system - the less serious, the stronger my cultivation! From then on, the style of painting completely deviated! Staying up late playing games = practicing all night long! Talking meanly to the principal = a huge increase in experience! Can you actually gain cultivation by swearing at others? ! The students I accept are even more outrageous than the last! A girl suffering from depression, enlightened by my few words, awakened her crazy fighting body, and became stronger the more she was injured! A fat girl who had low self-esteem because of her obesity was encouraged by me to "eat freely" and she actually became a "humanoid power bank" that could restore blue to the entire team! There is also the helpless nerd who masters calculation skills and sword skills by answering questions; the rebellious boy turns street fights into ancient martial arts skills! The True Sect of Xuanmen calls me an evil heretic and wants to destroy me and all my disciples? The Order Committee has listed me as the most dangerous person and is wanted throughout the city? But when the alien world is torn apart by cracks in the city, the ancient gods are about to come, and all the masters in the world are helpless—— Sorry, the only ones standing in the way of the end are me and my group of "problem students"! Are you saying I'm not serious? Then let me show you what it means to truly save the world in an improper way!