What if Yui Komori wasn't the only one sent in the mansion? What if she had an older brother? Jack Komori, her older adopted brother who holds many secrets and his past is a total mystery even to her. Jack who holds many secrets is quite the mystery, with the habits of playing with people with his words and twisting them. He may look innocent but with his mysterious background, he hides something very strong and dangerous deep within him.

What if yui wasn't alone and that she had a brother who was used by the church as a weapon. Yukine komori (real last in the bio) an 18 year old boy who hated the church since they used them as a weapon, Yukine was skilled with weapons especially daggers and swords..... Yukine now has to live with yui and the sakamaki brothers how will be survived.... I don't own anything of the diabolik series or the characters!!!!! Credits go to the rightful owner of the series!!! Please enjoy!!!