Born without magic in a world where it is universal, she was deemed worthless and abandoned at an auction. Her fate changes when a wealthy nobleman buys her for a fortune, claiming he fell in love the moment he saw her. He reveals that her unique constitution is the only cure for his own dangerous, overflowing magic. She agrees to his marriage proposal, hoping to find a home, but soon learns that the treatment he needs involves more than just medicine - it requires a physical connection.