High Martial: I Became an Unrivaled Expert by AFKing

After transmigrating to a high-martial world, Lu Zheng awakens the fully automatic Cultivation System! He doesn’t need to train hard. It automatically raises his cultivation and improves his martial skills day and night while he’s idle. Once a good-for-nothing in martial arts, he crushes every genius at school, delivers face-slapping payback to everyone who mocked him, and reaches the pinnacle of the martial path in a hundred days, forging an invincible legend.