Double Curse Crazy Demon: They Won't Let Go of the Evil Me

"The person he cares about most is me!" "He just thinks of you as his sister!" … "You obviously agreed to marry me when you were a child. Why did she become your fiancée when you grew up?" "I'll bite you to death, you bad guy, but thanks to the curse of cognitive impairment, I can hope to get you back." "When the curse is lifted and you are able to recognize this experience, you will no longer be able to treat me as your little sister when you were a child." "I will get into your heart and squeeze that woman out." … "Do you think there's nothing I can do if you hide him far away? Fate has already linked us." "You run around with him in the morning, and I spend the evening chatting with him on the road to the Saint."