Because of her debt she need to work hard for them as a servant exchange on her debt. Where she meet the love of her life, the man of her life. Kyojuro Rengoku, one of the demon slayer hashira. At first she doesn't want to give a try to make a first move even she's only the one who had feelings towards him. But one night that had happened to them was just full of desires and lust. The next thing she found out that she's pregnant with his child. She was sacred that if someone found out that she's pregnant at the same time those demon that wanted to kill the hashira might got harm her and also her baby. Anticipation was the one that she felt that time. What she should do, is she confessed to him that she's pregnant or kept it a secret and left him without saying anything. While carrying the third generation of rengoku's bloodline.

His the prince of vampire, Heaviern Reon Schnauzer and I'm his blood slave Ryka Vienna Madrigan. The ordinary human who became his slave just to survive from dead caused by thread. "Curse..love..and heartache.." I'm willing to cross the thorns for you, and became your slave prisoner of love...