Just Came Down the Mountain, I Am Invincible, You Can Do Whatever You Want

[Master comes down from the mountain + decisive killing + passion + revenge + single female protagonist + substitute marriage] Many years ago, Lin Fan suffered a genocide. Many years later, when Lin Fan returned from cultivating immortality, he was already invincible! You are free! If you let one person go, I will lose! Fiancée: Lin Fan, I regret it! Sister-in-law: Brother-in-law, you are so awesome! Enemy: Please let me go!