49 Days with a Merman

An outcast at school, Chao Lung-chieh takes solace in his grandfather's company. However, after the two have a fight, things go from bad to worse.

Lung-chieh tries to deal with his fallout with Hsu Tsung-chien, but a man with a mermaid tail won’t stop following him. An accident changes everything.

Lung-chieh introduces the merman as his cousin Lee Jen-yu. Meanwhile, Jen-yu reveals the prophecy he must fulfill. Chiang-chiang gets suspicious.

Accidentally elected as the class representative, Lung-chieh develops a bond with Jen-yu. But Jen-yu soon messes things up for him and Chou Pi-yu.

With his friendship with Lung-chieh on the rocks, Jen-yu discovers his true purpose for coming to land and devises a plan to make Lung-chieh happy.

Jen-yu learns of the cause of the rift between Lung-chieh and Tsung-chien. Guilt drives him to take action against Ta-pao, which leads to consequences.