The heroine - Xin Yuan, 26 years old, has an independent personality, strong appearance, fragile and sensitive heart, strong sense of defense, easily hurt, can hide her heart, can disguise, longs for happiness, falling in love with Chen Yu only takes a moment, but it takes a long time to forget.
The male protagonist - Chen Yu, 29 years old, a typical Scorpio, has a dark past in his heart, is unclear about the future, and is dissatisfied with the present. When he met Xin Yuan, he just felt that the conditions were right, and he had not really made up his mind to marry her for a lifetime.
Supporting Actor 1 - Tu Mingliang, 36 years old, Xin Yuan's previous boyfriend, a middle-aged man who has gone through many vicissitudes of life, used experienced means to obtain all of Xin Yuan's body and mind, but at the last moment, he gave up on Xin Yuan.
Supporting Actor 2 - He Xiaojun, 29 years old, also a Scorpio, but He Xiaojun is a simple science and engineering man who can't speak when he is nervous. He is in love with Qin Wanru who is confused. He has no musical ability and no romance, but he is the good man that worldly life needs most.
Supporting Actress 1 - Zhang Liran, 25 years old, looks mature and rational, falls in love with a man who cannot give her sincerity in this life, cannot extricate herself, gives birth to a child for him, and eventually leaves him.
Supporting Actress 2 - Qin Wanru, 25 years old, a confused woman who graduated from the Chinese Department. She is simple and sincere, and will fight with the boss over trivial matters. When she returns home, she needs He Xiaojun to clean the house for her.