Kai, the demon lord's son, is sent to earth to do a mission appointed to him by his father. With a few complaints about the strange behaviour of his son, Arazotael had to punish him. Kai may be a demon, but his mother had been an angel, and that's where his strange addiction to angels come from.

When he arrives on the strange planet called earth, he meets a human boy named Kyungsoo. A chef with high ambitions to become the best in the world.

Without his black wings and tail, Kai looks like just a normal guy. The embarrassing first encounter leads to another as they slowly get to know each other better.

When two worlds collide, anything could happen...