The Fanfic!
Here it is! The fic itself! This will take you to the series on AO3 which includes not only the main story, but one shots and a spin off featuring Fizzarolli and his Robo Fizz maids.
An Unhealthy Obsession
You can also find some extra bonus content on my kofi!
Sweet Dreams - Mammon finds Ransom sleeping on his bed and can't resist holding him.