Kurumi Tokisaki is Yandere slave but she doesn't show her Yandere side to anyone until she will be bought by her new master, Kurumi had more than 100 people who bought as a slave but none of them fit her well so Kurumi killed them all and come back to the slave seller and she wants someone gentle and caring as a master but the people who bought her only wanted to use her body so that's the reason she killed her previous masters, now she wait for someone gentle and caring on the slave market