in the earth ,humans lived and are assigned with angels who keep an eye on them and hide themselves as their shadows. a secret organisation discovered it and started to use those angels to commit crimes . the heaven sent the (croix) angel to come to earth and to destroy this vicious organisation and to free the shadows angels. when he is discovered that the real instigator is a shadow angel ,who was tired to follow a human and protect him.
a kid witness the murder of his family by the