I, Son Gohan, Would've Been Invincible Long Ago If I Hadn't Studied!

[Dragon Ball + taking disciples] [Feel-good power fantasy + invincible] [Shocking revelations + exposure] Lin Qi transmigrates to the Dragon Ball world, thinking he's a weakling with a power level of five. Then he unexpectedly awakens the Master Teacher System. As long as he teaches his students, he receives rewards at the end of each lesson. The more talented the student, the richer the reward. His first student is Son Gohan. He teaches him Dragon Ball history: Moro ten million years ago, Majin Buu five million years ago, and Frieza, Cell, and Beerus in more recent times! He makes Son Gohan face reality: only knowledge is power, and only knowledge can change your fate! Son Goku: “Gohan, where'd you learn that beast form? Did your teacher teach you that too?” Vegeta: “Damn it! Not only will I surpass Kakarot, I'll surpass Son Gohan and Lin Qi too!” Beerus: “If Son Gohan studies hard, even the Grand Priest will have to move out overnight!” And finally… Lin Qi's second student is Champa, his third is Zeno… He's invincible!