My Invincible Bodyguard — Episode 1

After ten years of training, Leon has acquired immense skills. Unexpectedly, right after descending from the mountain, he ends up in bed with a beautiful CEO. He thinks it's just a one-night stand, but he soon learns that the woman, Crystal Sullivan, is the very person his master sent him to protect. And so, their intertwined destiny begins. From then on, he fights playboys, confronts bullies, and deals with villains. Leon declares, 'I am invincible. Do your worst!'