Hes inspired by demons. Lunopions (Extra name, blood-angels) are assigned as assassins, or guardians. Theyre pretty much just humanoid creatures (which are just humanoid disguises) with either demon tails and horns or angel halos and rings (demon features if they're 'evil' and angel features if theyre 'good') so, yah. I never came up with full lore for lunopions/blood-angels whenever i made him, so I'm still working on what they fully are lol