An angel and a demon. They were created to be enemies and wasn't different with caramiel and Maze. They were like dogs and cats, heaven and hell, hot and cold. Complete opposites yet so beautiful together. Like a snow flake on a tree in summer.

Guest is an angel, one of Lucifer's siblings. Her purpose to come here on earth was simple. Just like Amenedial, she was here to take Lucifer back to hell. That was when she met Mazikeen, her natural enemy.. A demon. Maze never let caramiel take Lucifer back to hell. In fact in the beggining, she didn't even let her come close to her brother. They always fought, with Maze's demonic strenght and caramiel's angelic strenght, it always ended up in a tie.

Days passed but their rivalrly? Never. caramiel was still on earth but she wasn't trying to convince Lucifer to come back to earth anymore.. Because she had an another issue. Silver City, the place she always saw as a home.. Didn't feel like a home anymore. Humans, the creatures she always looked down to, now she felt attached to them. She started to understand why Lucifer liked it here. And slowly, earth become her home.

Guest and Maze both started a job, bounty hunting. It was basically tracing criminals down and catching them. Even though they were so different, there was one thing they could agree on, they wanted to punish the bad. And with that a demon and an angel found their passion on earth.

They both were so good at their job Maze's strength and Guest's power, "Angelic Melody" they were literally unstoppable. Because of that, soon their employer partnered them together despite their protests.

With that, the complete opposites, an angel and a demon started to work together.