Dokuiri-hime no Yomeiri

A girl named Akari belongs to a family with a unique trait—her bodily fluids are toxic. After the death of her parents, she became a maid in her uncle’s home, where she faced mistreatment due to her unsettling reputation. A man named Yuki, who owns a prosperous brothel, visits her residence and offers a substantial amount of money to marry her, though he appears to have an undisclosed motive.