She is a direct descendant of Wing Chun. She sneaked into Shanghai alone to save the national treasure, but because of a sudden attack, she was targeted by the gangster who held half of the concession. "Stay and be my person, or watch everything you care about disappear." He thought this was a well-planned plunder, and used all means to imprison her under his wings. Little did she know that what was hidden in her fist was enough thunder to ignite a beacon fire. When violence and wealth collide with the interests of family and country, in the night on the beach in Shanghai, who is in whose prison? This is a legend of troubled times that begins with conquest and ends side by side, written together in iron blood and tenderness.