Lilith curse (On Hold)

Yui has gotten used to being tossed around and treated like a good-for-nothing food bag, many people in the world have it worse than she does. Her fate was set into stone when she stepped into the Sakamaki Manor: to choose a man to marry and forever be his blood bag till the day she died. Yui was content with it, she had to or she'll die early.

One day, she discovered a pocket mirror hiding in an unopened drawer in her wardrobe. Thinking it was one of the earlier sacrificial brides' possession, Yui tries to put it back to respect her death until something popped out of the glass. It was a fairy! Well, a spirit, but it still looked like a fairy to her! The spirit's name was Lilith and she thanked Yui for finding her mirror, now being able to freely leave Yui's room. The fairy tells Yui how fed up she was watching the Sakamakis treat her like utter garbage, offering a 'gift' to her to use against them. Yui tries to decline it at first, only for Lilith to force it upon her body. Now, whenever the brothers kissed her, they become utterly attracted to Yui!