Li Fusheng, a legendary figure who has been retired for many years, returns to the city to fulfill a marriage pact arranged by his master years ago. He and his cold, aloof CEO fiancée, Lin Miaoyin, go from disliking each other to understanding and standing by one another. His identity is shrouded in mystery, and his skills are extraordinary. While keeping a low profile in a position within the group, he deals with successive provocations from various powerful forces and quietly protects everyone around him. Facing layers of old grudges and trials, he uses his exceptional abilities to resolve each crisis, ultimately finding sincere love and a peaceful life.