After being dumped by his boyfriend, a man named Lu Ziliang visits a shrine dedicated to a matchmaking god. There, he receives a red thread of fate. On what seems like a promising first date guided by this thread, he is suddenly killed.

Returning as a ghost, Ziliang is given one chance to reclaim his life: he must find true love while inhabiting a fragile, temporary body made of paper. The red thread leads him to a mysterious, cold-eyed man named Bai Qingsu. Ziliang quickly grows fearful of this silent and unsettling figure, becoming convinced that this man is the very person who murdered him.

The story is a Taiwanese BL (Boys' Love) manga written by Yuki Amino, blending romance with psychological and mystery elements. Ziliang faces an impossible dilemma. If he fails to obtain genuine love, his soul will vanish. However, if he chooses Bai Qingsu, he might be killed a second time. The central narrative arc follows Ziliang as he navigates his terrifying new existence, trying to uncover the truth about his death while struggling with his growing and potentially fatal attraction to the man bound to him by the red string.