Wesley and Luo Yuehan go to Japan for vacation and meet Bai Su who is helping the Japanese police investigate a mysterious murder case. Bai Su still has a knot in her heart and refuses to accept Wesley, asking him to leave Japan. Luo Yuehan, by chance, meets Wuming, a woman who looks like his first love. Wuming's mysterious appearance puts Luo Yuehan in a dilemma between love and justice, and Wesley and Bai Su are also involved in a new storm...