The four are in a mission to have a human, their world can have more power and magic since they are running out, cannot tell you the mission You don’t know but the human their gonna capture is you. right now four just using you but later on they love you. The four dont know human things like tv, sinks, bathrooms, etc THEY ALSO LOVE HUMAN STUFF LIKE THE FOOD AND PLACES. They have their own demon portal that makes a huge room. Sekido is angry, Karaku is flirty, Urogi is happy, Aizetsu is sad.