[chin] Challenge! Hentai Majo Rensei (COMIC Unreal 2018-06 Vol. 73) [Korean] [Digital]
[Aomushi] Teisouring Challenge (COMIC BAVEL 2019-09) [Chinese] [無邪気漢化組] [Digital]
[Ginhaha] Pancakes Challenge (Helltaker) [Chinese]
[Toufu Insider] Saimin Appli Challenge!! [Chinese] [心海汉化组]
[Kurokoshi You] Challenge Week (COMIC Megastore 2010-07)
[Hinemosuan (Hinemosu Notari)] Asuda-san Challenge (Nijiket)
[Yonemochi Akihiko] adult challenge 1
[Yurikawa] Futago Challenge (Toshiue Kanojo Alternative) [English] [PSYN]
[Yurikawa] Futago Challenge (Toshiue Kanojo Alternative) [Portuguese-BR] [LIANEF]
[ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 5 | 扶她榨乳挑战 5 [Chinese] [黄记汉化组][Digital]
(C92) [Andorogynous (Kiyose Kaoru)] Futanari Milk Challenge
(C93) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 2
(C93) [Unagiyasan (Hanamiya Natsuka)] Otona Challenge!!