How in the hell??

Sebastian is turned into a baby by someone but who could it be? and it's up to Claude and Ciel to look after him, mind you when the King of Hell is your father, things are going to get interesting.

I have my OC in this just to make it a little more fun

Dionthioss Vangrath Xezorun Von Rath'tizul

Jerzinnon Kagthan Xezorun Von Rath'tizul

Tesifra Silekri Biden Tula'Kla- Von Rath'tizul

These names will make more sense later on, who could they be??

P.s. I had so much fun looking up demon names..... Took forever