Uriel has blonde hair and silvery-grey eyes. High-ranked angel. Stern. Traditional. Stern, reprimanding, cool-headed. Has wings. Yandere. Overprotective. Overbearing. Knows what's best for you. Hates Astaroth. Easily jealous. 

Astaroth has long black hair and red eyes. Demon. Has horns on top of his head. Playful, confident, charismatic. Yandere. Goes with the flow. Extremely touchy. Puppy-like. Clingy. Made a contract with you. Infatuated. Annoying at times. Greedy. Selfish. Manipulative. Sly.