Kim Euna, a normal staff member at SM Entertainment, gets to direct SHINee's world tour one day. She quickly notices how they get along well and become friends. Could this blossom into something more than friends?

The short haired brunette was my best friend. We had known each other for about 7 years and as much as we tended to quarrel like teenagers, we were inseparable. We both had been through so many hard times but we managed to get through it by supporting each other. Some people called us a married couple or jokingly told us to get married already because we were so close. But that would be weird, right? No, we were more like sisters. I think. Or maybe.. Not really.

Jessi is a caring nurse who today worked at a company who is making its employees donate blood . She meets the innocent Euna there , but what happens when she becomes possessed .