In the quiet town, Bai Lian's mysterious life experience attracted people's attention.This beautiful woman seems to be troubled by an invisible red thread, and Shang-hyeok is deeply puzzled by this.He mistakenly believed that the reason why Bai Lian had not found a marriage was because she allowed too much love, but he did not delve into the real reason behind it.

On a snowy night in Mount Nio, a disappearance case shocked the whole city.Xu Zaixi, a reporter obsessed with the truth, is determined to investigate the case.At the old Gidong Animal Hospital, he unexpectedly met Baek Yeon and Sang Hyuk at the same time.This chance encounter seems to indicate that a bigger storm is coming.

As the investigation deepened, it was discovered that two witnesses related to the case died mysteriously on the same day.What kind of secret is hidden behind this coincidence?At the same time, Bai Lian was also attacked by unknown people, and her safety affected everyone's heart.

Shang Hyuk and Seo Jae Hee decided to join forces to investigate the case and solve the mystery of Baek Ryeon's life experience.They endured pressure, fearless hardships and dangers, and gradually uncovered the shocking secret behind Renwang Mountain.It turns out that all of this is inextricably linked to Bai Lian's life experience.And Bai Lian is not a simple victim, she also has many unsolved mysteries hidden in her body.

As the truth emerges, Sang Hyuk begins to re-examine his relationship with Baek Ryeon.He realized that the red line of marriage was not a bondage, but an arrangement of fate.Bai Lian also bravely faced her past and uncovered the secret of Renwang Mountain with Shang He.