I Didn't Know I Was Already Invincible

Logan Carter, the world’s mightiest warrior, was mentally broken by his family to live as a useless outcast. He left his mountain to cancel his arranged marriages for immortality, but his four wealthy fiancées came to him unannounced. Three shamed him publicly, while only Vivian Evans stayed loyal. All mocked the plain nobody, unaware he ruled the realm unrivaled. After easily defeating countless elite masters, Logan learned he was an immortal living among mortals.