[Kuon Michiyoshi] HUNDRED GAME Ch. 1 (Monthly Vitaman 2014-10) [Chinese] [樱翼汉化组]
Monthly Vitaman 2017-08 [Digital]
Maki Nico Lez Challenge
(C86) [Yamakawa Den'enfuukei (Yamada, Kawada)] HERE COMES A NEW CHALLENGER!! (High Score Girl)
[Kazuma Muramasa] Yukizuri Hot! (Monthly Vitaman 2011-03)
Futanari Milk Challenge 5 | 迫真水泳部・扶她的里技―第五章
Monthly MelomELO Feb.25,2013
Kodomo de Challenge 2
[dotsuco] Nametake Challenge!
Kasen-chan no Jasen Rouraku Challenge
Tanpan Kozou no Oppai Gym Challenge! | A Boy In Short's Big Breasted Gym Challenge!
Gekkan Comic Guts Re: | Monthly Comic Guts Re:
[Ponkotsu Works] Blind Ecchi! SideA (Monthly Vitaman 2014-09) [Chinese] {G&魔皮卡的女子力研究}
Hajimete no Inpio Challenge
Monthly Vitaman 2018-06
Monthly Vitaman 2006-09
Yousei-san no?! Himitsu no Bouken no Tobira Preview ver
[Karma Tatsurou] Saigo no Omoide | One Last Memory (Monthly Vitaman 2013-09) [English] [UsagiTrans]
Imasara Shampoo Bottle Challenge o Suru Suieibu Coach no Manga | 现在才来挑战洗发水罐子的游泳部教练的漫画
Monthly Vitaman 2018-05 [Digital]
Supervised Monthly Ejaculation
[Kuon Michiyoshi] HUNDRED GAME Ch. 10 (Monthly Vitaman 2015-10) [Chinese] [樱翼汉化组]
[Terujirou] Junior Dominating Senior Challenge! [RAW] [JAP]
Monthly QooPA 2015-01 [Digital]
Monthly Vitaman 2018-05
[Kinomoto Anzu] Akari Challenge (Chiisana Karada no Dakigokochi) [English] [TQM_Translations]
Reiwa Shasei Challenge
Seieki Tamekomi Challenge
Toka 1 hour drawing challenge
[Fanbox] Kanzarin [Hentai of the month] (3648356) [Textless]
Monthly Vitaman 2009-02 [Incomplete]
[Kuon Michiyoshi] HUNDRED GAME Ch. 9 (Monthly Vitaman 2015-09) [Chinese] [樱翼汉化组]
[Karma Tatsurou] Tsuyuki | Rainsnow (Monthly Vitaman 2014-08) [English] =TV=
CHALLENGE
Futanari Milk Challenge 6
Monthly Vitaman 2009-11
Monthly Vitaman 2015-01
[Sa-Ki] Honoka Challenge! (Love Live!)
Monthly Vitaman 2015-05 [Digital]
[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Oneesan no Fudeoroshi Ver. 4 [Digital]
Ero Trap Dungeon no Challenger
[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Onee-san no Fudeoroshi Yume to Kibou no Bikini Armor [Chinese] [cqxl自己汉化] [Digital]
[Hinemosuan (Hinemosu Notari)] Asuda-san Challenge (Nijiket)
Otou-san Challenge
(SUPER24) [PureSlider (Matsuo)] MONTHLY THE IWATOVISION (Free!) [English] [ichigo-day]
Monthly Vitaman 2015-08
(Futaket 14) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 3 | 迫真水泳部・扶她的里技―第三章[风俗店篇] [Chinese] [鬼迷日眼的莱科少校个人川话化]
i-ll-make-you-understand-challenge
[Juan Gotoh] San Jin San Getsu (Three People, Three Months) Ch. 1-3 [English]
[MemeXILE (Memeo)] Kodomo Challenge (Free!) [Digital]
Monthly Vitaman 2018-03
[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Oneesan no Fudeoroshi Ver. 3 | Brown Lady Takes His First Time Ver. 3 [English] [vaasi] [Decensored] [Digital]
(C64) [kodomo challenge (Various)] natsu no kansatsu nikki | Summer observation diary (Original) [English]
Kanade Challenge Kouhen
[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Oneesan no Fudeoroshi Ver.4.1
[Bochi Bochi no Ki (Borusiti)] Kasen-chan no Jasen Rouraku Challenge (Touhou Project) [Digital]
[Kuon Michiyoshi] HUNDRED GAME Ch. 4 (Monthly Vitaman 2015-02) [Chinese] [樱翼汉化组]
Namaiki Kuchikukan Wakarase Challenge | I'll Make You Understand Challenge
[Sakura Garden (Shirosuzu)] Chaldea Outdoor Challenge Abby-chan to Issho 2 (Fate/Grand Order) [Digital]
[kogasaki yuina] JK Mamamo No Shuugakuryokou Oppai Challenge | JK玉藻的畢業旅行ㄋㄟㄋㄟ大冒險 [Chinese] (Fate/Grand Order)[三色的大猩猩翻譯同盟]
[Sakura Garden (Shirosuzu)] Chaldea Outdoor Challenge Abby-chan to Issho (Fate/Grand Order) [Digital]
(SUPER11) [Astonish (Naitou Naito)] Kodomo Challenge (Various) [English] [CrystalMeph]
Sennou Fuchou no Obenjo Challenge Isshuukan!
(SUPER24) [PureSlider (Matsuo)] MONTHLY THE IWATOVISION (Free!)
Futanari Milk Challenge 3
Doki Doki ❤ Ticket Challenge!
[Tenchuugumi] Queen Sayoko's Challenge (Ah! My Goddess!) English
Monthly QooPA 2014-08
Pancakes Challenge
[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Onee-san no Fudeoroshi SNS wa Kiken na Nioi [Chinese] [cqxl自己汉化]
Monthly Vitaman 2014-07
(Sennen Battle Phase 11) [ANNIELAURIE (Toyama Nanao)] SEX CHALLENGERS 02 (Yu-Gi-Oh! ARC-V)
Shizuku Challenge! Takumin Hitsuji-san no Chichishibori! RX
(C64) [kodomo challenge (Various)] Natsu no Kansatsu Nikki
Monthly Vitaman 2015-09
Kyogo ~Kunoichi Water Torture Challenge~
[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Onee-san no Fudeoroshi Kyou mo Himitsu no Seikatsu Shidou [Digital]
(C94) [Moruda Ramenya (Moruda)] Okei-san no Nukinuki Dosukebe Challenge | Okay-san's Dirty Lewd Challenge (Girls und Panzer) [English] {Doujins.com}