Bai Zong Yi, an exemplary student with dreams of becoming a doctor, is unexpectedly drawn into the world of an injured gangster named Fan Ze Rui. This unexpected encounter disrupts their tranquil routines and sends their lives into a whirlwind. Their initial awkwardness gradually gives way to familiarity and eventually blossoms into a heartfelt connection. Just as their love story begins to unfold, Fan Ze Rui's criminal past catches up with him, leading Bai Zong Yi to take the blame and be imprisoned. A twist of fate erases Fan Ze Rui's memory, causing him to forget the person who sacrificed for him, and they drift apart. Four years later, Bai Zong Yi, who now struggles with memory loss due to a head injury, and the amnesic Fan Ze Rui cross paths once again, thanks to someone's careful planning.