冥のエンジェル
"Angel Transients summoned from another world. They uphold law and order and have a strong preference to maintain community. However, they have more humane emotions and thought than people may think. Some may find a bond with you and offer their help. Others may be attracted to you, and choose to be by your side."

[[tokyo afterschool summoners]]

https://housamo.wiki/Angel#transient4
nether angel (housamo)