Muzan was at the empty marketplace in the entertainment district holding his dead human wife Carlissa s body in his arms....His only true love....when he heard a baby crying from her apartment just across the street above the marketplace. He jumped in through the open window. The apartment was quiet except for the crying baby girl laying near a futon. He picked up the baby girl and when she stopped crying and opened her eyes to look at him he froze. The baby girls eyes was crimson red and looked excatly like his she also had his black hair...Then Muzan saw a photo and a letter laying ontop of the baby girl...Muzan picked up the photo and the letter....the photo was of himself and carlissa who had been a stripper...Muzan read the letter...To My Beloved Muzan if i wont survive tonight while i m looking for you please take care of our half demon daughter Kara...yours forever and always carlissa.