I-hsin finds out fiancé Li-yang frequently seeks therapy at a psychology clinic named “Time Travelers”, and decides to visit it herself to see what it’s all about. She is reluctantly given a hypnosis treatment and enters a hyperreal dream. In this alternative reality, she has turned down Li-yang’s proposal and instead chose her senior in college, Kai, whom she had a secret crush on. In this divergent timeline, she marries Kai and carries his baby, feeling so incredibly happy that she questions if she made the right choice in real life.After waking up, I-hsin becomes anxious about her imminent marriage and grows attached to Kai. Li-yang was devastated by her rejection and got seriously injured in a car accident in this parallel universe. Seeing the traumatized Li-yang, I-hsin realizes this caring and loving man is the one she really needs, and resolves to save Li-yang in both universes, as well as their relationship.