The Fiercest Avenger

A cook inexplicably came to another world and became an orphan. Because his cultivation was sucked dry by others, he has been unable to practice. He is a waste in the eyes of everyone. He killed the Lord of the Sky with a kitchen knife, broke through the nine heavens, and reached the pinnacle of martial arts. But who are his parents? He went to the ten forbidden places just to know his life experience.