Shen Yizhen is a third generation of successors of Shenhua Group. He has multiple personalites. When he meets his psychiatrist Bai Xinxin, he falls in love with her.
A 28-year-old postgraduate of a famous American university, the third generation successor of Shenhua Group. He is kindhearted and gentle, but certain traumatic events from his mysterious past cloud his everyday life.
Cui Haoyue: A vehement guy with a devil-may-care demeanor who appears when Shen Yizhen experiences violence. He is the only identity to have all of Shen Yizhen's childhood memories. His first love is Bai Xinxin.
Zhu Changjiang: A man with an affinity for building bombs and drinking alcohol. He is erratic and fun-loving.
Mo Xiaojun: An intelligent boy who is musically gifted, but often has suicidal thoughts.
Mo Xiaona: An extrovert and mischievous young girl who loves idols and shopping. She has a crush on Bai Xiangrong.