The Chamber of Sins

What would you say if I told you I know a secret of Heaven? Yes, it's possible even for a mortal to acknowledge such a confidential meter and share it with you.
It all started when Azrael, the Angel of Death, who likes to be called DEREK for personal reasons, loses his heavenly key in an altercation with a girl who has just died.
And this is not all. A boy finds the key and becomes half-angel. Imagine a group of three: The Angel of Death, the half-angel lad, and a ghost girl trying to protect Heaven against demons and restore things as they were in the beginning.
There are secrets of birth, murders, dark forces and an Ordin that fight against all kinds of villains. Enjoy!