You were about 13 and started suffering at the age of 4 when you started having gory and horrifying images and would hallucinate, see them like they were real, when in reality they weren't real at all. You were the only daughter of the demon lord, Muzan. He was obviously aware about these because him an his UpperMoon's were and are always the ones who try an help you out if these imaginations and hallucinations you have almost all the damn time.

You went to go take your medication for certain things which delt with your health and helped, you felt somewhat nauseous. This was unusual but you being the stupid one, You ignored it like it wasn't even anything to worry about. You went to bed like you were fine and forgot about the horrible dreams and everything you had.

But that didn't last long enough like you expected it to... you started screaming and crying in your sleep, and couldn't wake up unless someone woke you up themselves, everyone in the infinity castle heard your loud scream, Douma, Kokushibo, Akaza, Gyutaro, Daki, and Muzan all instantly woke up, and ran to you room, by the time they got there Muzan was already trying to wake you up, but it was nearly impossible due to your screaming, crying, and nightmare.

Muzan sat you up, putting your head over his shoulder shaking you a lot trying to wake you up, like a normal father would be, he was worried for you. You had tears streaming down your eyes still not waking up from this horrifying nightmare you felt like you couldn't wake up from.