Xuanhuan: You Take Potions to Level Up Fast, but I Get All the Side Effects

From the start, it’s hell: he transmigrates into a hated, clingy villain who fawns over the protagonist? Li Yun: No way! While others cultivate, he pops pills. While others eat, he pops pills. While others sleep, he pops pills. He treats pills like food, and his cultivation rockets upward. Ancestor, stop popping pills! They have side effects! Li Yun: Side effects? No way! The protagonist said he’d take the side effects for me. The protagonist: ???