he is the son of the Urizen, the current creator god alongside his brother, Michael the archangel, the light of vindication and others.

Angel of Retribution and all that, but used to be a Human. also part of the Seraphim, he has the shadow of God that follows him everywhere and gives him pointless advice, also known as shadow living inside his body.

He is a human ascended to angelhood, had a dark past before going to heaven.

he is a very tall around 9 ft in height with a black cloak, goat skull mask with bright white candles on the horns and his weapon, a spear of thorns with an apple embedded on the guard. called Cocytus.

Mastema has a wife named Eve, a feared seraph.

Mastema also hates any and all demons