While You Were Sleeping

Do Min Joon is an otherworldly beauty, literally. After crash landing on Earth 400 years ago, Min Joon has diligently observed humans for centuries, ultimately coming to cynical conclusions. On top of being a super babe, Min Joon's got enhanced vision, hearing and agility — all the more reason to believe he's superior to everyone on Earth. That is, until he pursues the beautiful actress Cheon Song Yi for a romance out of this world.

When Hye-Jung was young, her life was difficult. She was good at fighting, but also studied well. Overcoming her tough situation, she is now a doctor.

Needing to make $90k to open her own business, Seo Dal Mi drops out of a university and takes up part-time work. She dreams of becoming someone like Steve Jobs. Nam Do San is the founder of Samsan Tech. He is excellent with mathematics. He started Samsan Tech two years ago, but the company is not doing well. Somehow, Nam Do San becomes Seo Dal Mi’s first love. They cheer each others start and growth.

The Hotel Del Luna, located in Seoul, is not like any other hotel: its client are all ghosts. Jang Man-Wol, stuck in the hotel for the past millennium, meets Koo Chan-Sung, the new manager.