(C95) [Fuwatoro★Marinepolis (Sumitomo)] Theater Challenge (THE IDOLM@STER MILLION LIVE!)
TS-kko Otokoyu Challenge!
[Milk Pudding (Jamcy)] Akane-chan Challenge! 4-kaime (VOICEROID) [Digital]
[Metacorapusu (Metacora)] JC Chinpo-beya Ikkagetsu Seikatsu Challenge!! (Kouhen) [Digital]
(C91) [Molossan (Morochin-san)] DokiDoki Mesuiki! Challenge!! (Various) [Chinese] [不協和音漢化]
[Sakura Garden (Shirosuzu)] Chaldea Outdoor Challenge Abby-chan to Issho | Chaldea Outdoor Challenge with Abby-chan (Fate/Grand Order) [English] [The Blavatsky Project] [Digital]
[Juan Gotoh] San Jin San Getsu (Three People, Three Months) Ch. 1-3 [English]
Monthly Vitaman 2014-02
Monthly Vitaman 2018-03
[d.a.p (mougi)] Unknown Unlock Challenge (CROSS x BEATS) [Chinese] [这很恶堕汉化组] [Digital]
Takagi Airi no 10-pun Challenge | Takagi Airi's 10 Minute Challenge
(iDOL SURVIVAL2) ["Tsu" ga Mittsu. (Tsuttsu)] Akane Challenge!? (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [无毒汉化组]
Monthly Vitaman 2007-09
Utsuho Challenge!! ~Yobai ni Chousen~
(C59) [Dish up, ONE COIN (Warabi Yuuzou)] Monthly Pace No. 2 (Street Fighter)
Tanpan Kozou no Oppai Challenge!
(COMITIA97) [The Monthly Istanbul (Ahugan Sugita)] Bikyaku Zukan
[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Onee-san no Fudeoroshi Kyou mo Himitsu no Seikatsu Shidou [Digital]
[Kawai] ETD Challenge.
Kashima-san to Akimatsuri Challenge
Monthly Vitaman 2015-11
Monthly Vitaman 2015-05
Monthly QooPA 2013-10
[kogasaki yuina] JK Mamamo No Shuugakuryokou Oppai Challenge | JK玉藻的畢業旅行ㄋㄟㄋㄟ大冒險 [Chinese] (Fate/Extra)[三色的大猩猩翻譯同盟]
(Futaket 14) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 3
[Algolagnia (Mikoshiro Honnin)] Monthly Margareta inaugural issue "Entrance Information" vol.000
[Homura Subaru] Milky Succubus Lyli 4 (Monthly QooPA 2015-02) [Digital]
Futanari Milk Challenge 3
[Senbon Torii] FallenXXangeL The Last Stage 1 FULLCOLOR (Injuu Seisen Twin Angels) [Digital]
[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Oneesan no Fudeoroshi Ver.4.1 [Chinese] [cqxl自己汉化]
You Are Challenged by Kogal Takuha | La Sfida
(SUPER24) [PureSlider (Matsuo)] MONTHLY THE IWATOVISION (Free!) [English] [ichigo-day]
[Fanbox] Kanzarin [Hentai of the month] (4012732)
Monthly 'Aikawa' The Chief Editor Chp. 7
Monthly Vitaman 2013-06
(Futaba Gakuensai 8) [1000AP (Various)] Kodomo de Challenge 4 (Futaba Channel)
Futanari Milk Challenge 3 | 扶她榨乳挑战 3
[Pyonchi Koubou (Pyonchi)] Dosukebe Muramatsuri 1 - Jigoku no Cli Zeme Mesugaki Taikyuu Renzoku Acme Challenge Hen
[Bobobo] Hito Tsukiburi | After A Month (PLDK) [English] =LWB=
[Fujisaka Kuuki] Koi Kano x Ai Kano Ch. 24 (Monthly Vitaman 2015-04) [Chinese] [樱翼汉化组]
Chaldea Outdoor Challenge Abby-chan to Issho 2
Monthly Vitaman 2014-07
[Kuon Michiyoshi] HUNDRED GAME Ch. 3 (Monthly Vitaman 2014-12) [Chinese] [樱翼汉化组]
Monthly Vitaman 2013-02
Supervised Monthly Ejaculation
Reiwa Shasei Challenge
[hal] Hoozuki Miyoko Keiki 5-nen 6-kagetsu | Hoozuki Miyoko Sentence Five years, Six months (Mesu Ana Muhou Chitai -Mondou Muyou no Nakadashi Choueki-) [English] [CGrascal]
(Utahime Teien 4) ["Tsu" ga Mittsu. (Tsuttsu)] Akane Challenge!? 2 (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [无毒汉化组]
Futanari Milk Challenge
[The Monthly Istanbul (Ahugan Sugita)] Bikyaku Zukan (Various) [Digital]
(C77) [Kyuu (Shooya Akira)] Futtou Challenge (Sora no Manimani)
Monthly Vitaman 2016-10 [Digital]
(C94) [Moruda Ramenya (Moruda)] Okei-san no Nukinuki Dosukebe Challenge | Okay-san's Dirty Lewd Challenge (Girls und Panzer) [English] {Doujins.com}
[ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 3 [Digital]
Tobira no Soto ni Ke tsuya no Ii Neko ga ita no de, Shitsukete Kaineko ni shite miru Challenge.
[Tenchuugumi] Queen Sayoko's Challenge (Ah! My Goddess!) English
[Yurikawa] Futago Challenge (Toshiue Kanojo Alternative) [English] [PSYN]
[Fujisaka Kuuki] Koi Kano x Ai Kano Ch. 20 (Monthly Vitaman 2014-11) [Chinese] [樱翼汉化组]
(SC40) [Delayder (Makinon TM)] Yousei-san no?! Himitsu no Bouken no Tobira Preview ver (Challenge First-Year-Student)
Monthly Vitaman 2009-10
Monthly Vitaman 2008-08
[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Oneesan no Fudeoroshi Ver. 4 [Chinese] [cqxl自己汉化] [Digital]
[Jyoka] Igyou Kaikitan Mannequin (Monthly QooPA 2015-06)
Pancakes Challenge
Getsumatsu Daikanshasai | End of the Month Appreciation Event
[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Onee-san no Fudeoroshi Kyou mo Himitsu no Seikatsu Shidou[Chinese] [cqxl自己汉化] [Digital]
(COMIC1☆7) [ASIANBOY (Hasemi Ryo)] Backstage Hibiki Challenge (THE IDOLM@STER)
Monthly Vitaman 2009-11
(C97) [Yusei Haguruma (Victanyas)] Namaiki Kuchikukan Wakarase Challenge | I'll Make You Understand Challenge (Azur Lane) [English] {Doujins.com}
(C92) [K+W (Sasachinn)] Hatsuzuki to Muremure Muramura Natsu Ecchi! | Having Stuffy Sex On The First Month Of Summer! (Kantai Collection -KanColle-) [English] [Doujins.com]
(C94) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 4
Ero Trap Dungeon no Challenger
Futanari Milk Challenge 4 | 扶她榨乳挑战 4
HERE COMES A NEW CHALLENGER!!
Monthly Vitaman 2015-12
Monthly Vitaman 2017-05
[Kurokoshi You] Challenge Week (COMIC Megastore 2010-07) [English] {doujin-moe.us}
(C94) [Bizensiki Roroppu (Bizen)] Oshiri Ecchi Challenge (Hatoba Tsugu)
Akane-chan Challenge! | 아카네짱 챌린지!
Monthly Vitaman 2016-08
[ro] Ookami to Akazukin Ch. 3 (Monthly QooPA 2014-11) [English] [Kappasa] [Digital]
Misaki-chan no Lotion Challenge
Akari Challenge
[Fujisaka Kuuki] Opparadise wa Shinryouchu | 欧派天国诊疗中 Ch. 8 (Monthly Vitaman 2018-02) [Chinese] [前线作♂战♀基地] [Digital]
DokiDoki Mesuiki! Challenge!!
Tanpan Kozou no Oppai Gym Challenge! | A Boy In Short's Big Breasted Gym Challenge!
One-shota Challenge
Monthly Vitaman 2009-02 [Incomplete]