The One-Punch Emperor

To be precise, Yun Yi transmigrated, and somehow became invincible for no apparent reason. He did nothing, never cultivated any strange techniques, and had never even heard of things like mental cultivation methods, divine artifacts, or mythical beasts. Somehow, he was simply invincible. No matter how powerful or absurd the enemy, one punch is all it takes!!! He may be invincible, but he's never lonely.