Kyungsoo works as a senior nurse in one of the busiest emergency departments in the whole of Seoul, where he helps patch up and treat hundreds of patients every week. He considers himself to be knowledgeable, reliant and resilient. Which is exactly why Jongin is totally enchanted by him.

Minseok spends his years of eternal life working in the library archives to keep himself tame, but occasionally he finds it hard to maintain control.

Every night Jongdae's mind is plagued with visions of him being lured into the sea by a soft voice.

Jongin's first friend comes in the form of a mysterious boy who never wears shoes and only comes out at night.

Kyungsoo's life is changed forever when he is involved in a near fatal accident, luckily he is saved by a stranger called Jongin. This is the story of his recovery.

Tao never has a motive, he doesn’t need one. He’s only doing his job.