Jinx is a demon who was born in hell. Growing up, her parents were not always there for her, so it was her aunt that raised her. This made Jinx become worried about if she was important or not. At school everyone bullied Jinx because of how gullible she was. So growing up was a hard thing for her to do.

Jinx wasn't alone though, she met Danny and they both became friends, Danny would defend Jinx whenever kids would pick on her, they both hung out a lot after school alongside with Danny's other friend Sunny.

Years later, Jinx found out that Danny currently lives in the overworld with a few other humanoids, so she traveled up there in hopes of reuniting with her childhood friend.