Sisters Hua Qingyun and Little Butterfly in the troubled times of the Republic of China reunited in Shanghai ten years later. Sister wants to kill her godfather and repay her blood debt; My younger sister wants to scam her fianc é's explosives, and I am seeking credit and rewards. Two people mutuallyConcealing and probing until we draw our swords and meet. Later, they gradually resolved misunderstandings and worked together to achieve revenge.