Heaven and Hell, Angels and Devils. They're opposites with opposite beliefs and lives. They don't necessarily like each other they just tolerate each other to work together and maintain the balance between their realms.

Michael, the head angel was in his cloud tower up in heaven when Raphael, his assistant barged in frantically. But actually the same thing was happening in the opposite realm, Lilith the queen of hell was in her fiery tower when her assistant, Lamia walked in but in classic hell fashion, not frantically but rather calm and IDC vibes while chewing gum.and they both reported the same problem, The balance between heaven and hell is breaking.