I Trained a Class of Geniuses, Then the Principal Fired Me

[Advanced Martial Arts + System + Character Growth + Face-Slapping + Ungrateful Students Get Their Comeuppance + No Self-Sacrificing Saint] Chen Xuan transmigrates to a world of advanced martial arts and binds himself to the [Genius Training System], turning the school's worst class, Senior Year Class 8, into a class of geniuses. Drug resistance buff maxed out: other people suffer side effects from medicine, but Class 8 students drink potions like water! Epiphany buff maxed out: other people get stuck at a bottleneck for half a year, but Class 8 students break through during class! On the eve of the Martial Arts Cup, the principal fires Chen Xuan on the spot so he can give the genius class to his nephew. Even worse, the students he had painstakingly trained all turn against him. “We got stronger through our own hard work. What does that have to do with you?” Wang Yi, the female student he valued most, even turns on him and frames him! Chen Xuan laughs, withdraws every System buff on the spot, and heads for the worst high school in the city. Without the buffs, Class 8 instantly reverts to its old self: “Why does my head feel all pointy after I take my medicine now?” “Why can't I understand this martial arts material all of a sudden?” “I used to break through bottlenecks so easily. Why have I been stuck for so long without Teacher Chen?” At the Martial Arts Cup, everyone expects the genius class from No. 1 High School to take the title, only to watch the so-called trash high school sweep the competition. The principal, parents, and ungrateful students panic and gather at the gates of No. 18 High School, crying and begging Chen Xuan to come back. Chen Xuan looks down on them. “When you kicked me out, did you ever think this day would come? Now get lost. Don't dirty the ground beneath my feet.”