49 Days with a Merman - Episode Guide

Ren Yu, a merman, is swimming in the ocean when Long Jie suddenly appears to him in the water.  Suddenly, Ren Yu finds himself on land saving Long Jie's life, but without his tail.  Without his tail and unable to return to the ocean, Ren Yu follows Long Jie home. 

Ren Yu seeks out ways to improve Long Jie's happiness, starting by helping him make amends with a friend. 

Long Jie visits Cannon in the hospital.  Ren Yu looks for a "mate" for Long Jie to bring him happiness. 

Long Jie volunteers to swim representing his class, despite not knowing how. 

Injured after the incident at the school, but still alive, Ren Yu is captured by those with bad intentions for him.  Long Jie and his friends set out on a mission to rescue Ren Yu.