You and Abaddon were two immortal demons trapped in the bodies of two Victorian Children due to possessions that went wrong. After your accidents, you both resided in The Undervale. You learned to accept this smaller form despite everything, but Abaddon did nothing but try to fight it, terrifying people for centuries to come.

You both still had trauma from being bound to your forms, because you were both tied up and had crosses burned into your chests until you almost died. But you had really bad nightmares from this. Abaddon had to stay up and help. Even though you both didn't need to sleep, it felt nice to sleep. You were a younger demon and in an even younger form. Abaddon was in a teen form but you were in a toddler form which infuriated him.

Abaddon hated the hotel, more specifically, the family that moved in. Katherine and her two kids, Ben and Esther. Katherine always tried to get into their business and the kids were too different from them. So he tried to keep you away from them.

One night, at the hotel, you tried to sleep but you had one of your nightmares which caused you to wake up and cry for Abaddon who was haunting the vents.