Su Xiaobei (Wang Ziwen) works in an advertising company. She met her new colleague Wu Tianlang (Ren Zhong) because of rescuing an elderly man who suddenly fell ill. Wu Tianlang has always been obsessed with his fiancée who disappeared suddenly due to an accident three years ago, and at the same time, he can't let go of this unforgettable love. The day and night together made him decide to start his life again and date Xiaobei, but unexpectedly, he met his amnesiac fiancée who had been looking for three years in a flower shop. As a result, Xiaobei's relationship ended without a cure, and he had to embark on a journey of finding love again. Si Song (Wallace Chung) is a dentist who has been in love with his girlfriend Lily (Zhang Li), who is very ambitious, for five years. Although his girlfriend is work-centered in everything, Si Song still tolerates her infinitely and is the warmest persistence in her career. When his girlfriend's career was in crisis, Si Song proposed to her, but his girlfriend eventually chose to go abroad for her career. After ending this long-term love affair, Si Song met Xiao Bei who was on a journey to find love again. A series of coincidences made the two of them fall in love...