[Uesugi Kyoushirou] Succubus Onee-san to Inmon Keiyaku (COMIC Unreal 2017-08 Vol. 68) [English] {Hennojin} [Digital]
[Mifune Seijirou] Elf Harem no Mori to Kozukuri Keiyaku | Baby-making contract with a harem of forest elves (COMIC MILF 2017-10 Vol. 38) [English] [sapphireblade] [Digital]
[Ohsaka Minami] Dokusen Keiyaku + Mousou Ace (Namaiki Keiyaku) [Chinese] [Incomplete]
[Bai Asuka] Keiyaku Dorei Duma [Digital]
Koukan Nikki Yurina to Asobou | Koukan Nikki Playtime with Yurina
[Bai Asuka] Keiyaku Dorei Zuma | Contractual Slave Wife Ch. 1-8 [English] [N04H]
[Dhibi] Keiyaku - Contract with the witch (COMIC X-EROS #66) [Chinese] [沒有漢化] [Digital]
(SC52) [Nanatsugumi (Nanamiya Tsugumi)] Keiyaku Tenshi (Kaitou Tenshi Twin Angel)
[Bai Asuka] Keiyaku Dorei Zuma | Contractual Slave Wife Ch. 1-7 [English] [N04H]
Koukan Nikki Ninshin Jisshuu | Koukan Nikki Pregnancy Practice