Moto Dorei desu ga, Oni no Dorei wo Kattemitara Seiryoku ga Tsuyosugiru node Sutetai......
元奴隷ですが、鬼の奴隷を買ってみたら精力が強すぎるので捨てたい……
Seven years after being taken to a different world and forced into servitude, Sora Ono regains her freedom due to a mistake in her status. After becoming free, she one day decides to buy a slave.