The Legend of the Blue Sea

In August 1958, Damryeong meets a beautiful mermaid trapped in a small pond and releases her.

Joon Jae becomes soft-hearted after seeing mermaid waiting for him so he brings the mermaid to his house. The mermaid is addicted to the new world of Joon Jae's laptop. Meanwhile, Joon Jae and the mermaid become fugitive due to the chase of Jin Ok.

Jun Jae was left alone with a jade bracelet and a grain of pearl after falling from a cliff, he barely managed to arrive in Seoul and hurried in to resolve a fraud case of madam. Meanwhile, Mermaid begins a rough journey to Seoul to keep the promise.

Jun Jae, who had never seen a mermaid before felt a strange sense of vision and helped her escape from the aquarium... On the other hand, a murder happened next door to Jun Jae while the whereabouts of Ma Dae-young is unknown for three months.

Jun Jae feels strange about himself having weird feeling toward Sim Cheong. He warns Sim Cheong that if she does not tell him what happened in Spain by tomorrow, she should leave home. Sim Cheong fall asleep with a wish that the next day would not come.

Jun Jae fall in a panic state after seeing Cheong is bedridden at hospital emergency room. Chi Hyeon receives investigation at the hospital. Meanwhile, Nam finds a tape recorder that is attached to a black box inside of Chairman Huh's car.