Where is that place? The place where heavens and earth meet. It is hidden deep in our world and only few humans have access. Yes, humans. These humans have a very special condition to see angels. But to cause less chaos, angels disguise themselves as humans. Angels stay there when they are assigned to protect someone from Earth. Lucky ones get 3 or more angels as their guardians which is rare.

Now, this is a story about a girl who is one of those people who can deremine which are angels. She accidentally stumbles in their hideout. Ever since, her life will go topsy turvy. Missions, smiles, laughter, tears, difficulties and romance will head her way. This might be her best or worst moment of her life.