Doki doki♡ Ticket Challenge!
(C64) [kodomo challenge (Various)] Natsu no Kansatsu Nikki
[Mizone] Hito no Ashi yori Hebi no Ashi Miyo (Monthly QooPA 2014-09) [Digital]
Monthly Vitaman 2015-08
[Karma Tatsurou] Mini Tsuma (Monthly Vitaman 2012-03) [Digital]
Misaki-chan no Lotion Challenge
Rika no Oshiri Challenge
[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Oneesan no Fudeoroshi Ver. 3 [Digital]
Saimin Tengoku Challenge 06
Monthly Vitaman 2013-04
[Kuon Michiyoshi] HUNDRED GAME Ch. 4 (Monthly Vitaman 2015-02) [Chinese] [樱翼汉化组]
[Croriin]~Succubus Challenge~(Isekai Rakuten Vol.5)[Chinese][星瞳漢化]
(COMIC1☆7) [ASIANBOY (Hasemi Ryo)] Backstage Hibiki Challenge (THE IDOLM@STER) [English]
Etorofu-gata Otoile Challenge
Monthly 'Aikawa' The Chief Editor Chp. 4
Pancakes Challenge
HERE COMES A NEW CHALLENGER!!
(C78) [WORLD BOX, Bon's (Yuu, Sumeragi Sora)] 2-nen to 8-kagetsu no Kiseki | A Journey of 2 Years and 8 Months (Durarara!!) [English] [ebil_trio]
[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Onee-san no Fudeoroshi Ver. 7 [Digital]
[Terujirou] Junior Dominating Senior Challenge!
(C95) [Yamitsuki Honpo (Wise Speak)] JK Tamamo no Shuugaku Ryokou Oppai Challenge (Fate/Extra)
[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Oneesan no Fudeoroshi Ver. 4 [Digital]
[Tenchuugumi] Queen Sayoko's Challenge (Ah! My Goddess!) English
Namaiki Kuchikukan Wakarase Challenge
Naisho no Enkou Challenge | 不可告人的援交挑战
[Kogasaki Yuina] JK Tamamo no Shuugaku Ryokou Oppai Challenge (Fate/Grand Order)
Kuroshio Challenge
CHALLENGE
[ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 3 [English] {Hennojin} [Digital]
(Kono Koe Todoke, Tsuki made mo Yon) [Milk Pudding (Jamcy)] Akane-chan Challenge! 3-kaime (VOICEROID)
Chaldea Outdoor Challenge Abby-chan to Issho 3
[Kijitora Nukodi] Lost - Boku no Kioku ha Kimi no Naka | Lost - My Memory Is Within You (Monthly Vitaman 2015-10) [English] [BabaDeca] [Digital]
Doki Doki ❤ Ticket Challenge!
(C95) [Taikan Kyohougumi (Azusa Norihee)] Sakura-chan to Oshigoto Challenge - Ona-Hole Challenge with Sakura (Cardcaptor Sakura)
An NTR Day Per Month - Husband Pretends Not To See It Before Her
[Fujisaka Kuuki] Koi Kano x Ai Kano Ch. 23 (Monthly Vitaman 2015-03) [Chinese] [樱翼汉化组]
UnknownUltimateChallenge
(SUPER24) [PureSlider (Matsuo)] MONTHLY THE IWATOVISION (Free!) [English] [ichigo-day]
[Kuon Michiyoshi] HUNDRED GAME Ch. 1 (Monthly Vitaman 2014-10) [English] [allenallenallen333]
(Utahime Teien 4) ["Tsu" ga Mittsu. (Tsuttsu)] Akane Challenge!? 2 (THE IDOLM@STER CINDERELLA GIRLS)
Monthly Vitaman 2016-01
[Comeon Showme] Unhappy Now Year (Monthly Vitaman 2013-02) [English] [Krozam]
(C93) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 2
Futanari Milk Challenge 3
Time of the Month
Monthly Vitaman 2017-04
[Usakun] Kongetsu no Wanko. | This Month's Doggy. (COMIC LO 2007-05) [English] [sirC]
Iemoto Challenge Series - Jinrui Hasshou no Chi de Mikai no Buzoku to Bunka Kouryuu Isshuukan
[Karma Tatsurou] Saigo no Omoide | One Last Memory (Monthly Vitaman 2013-09) [English] [UsagiTrans]
[Kuon Michiyoshi] HUNDRED GAME Ch. 11 (Monthly Vitaman 2015-11) [Chinese] [樱翼汉化组]
Yamahime No Jitsu August Extra Monthly Juku Onna Tengoku
A Challenger Has Appeared Which Naturally Leads To A Duel | Chousensha ga Arawareta - Shizen na Nagare de Kettou
[Algolagnia (Mikoshiro Honnin)] Monthly Margareta Vol. 2
[Hinemosuan (Hinemosu Notari)] Asuda-san Challenge (Nijiket)
[Professor Grace (Grace Ishikawa)] Brain Training (From: COMIC Monthly Vitaman 2006-10) [ENG] =TV=
[Yoriu Mushi] Kokuu Kara no Chousen - Challenger from the Sky
Monthly Vitaman 2007-08
[Sakura Garden (Shirosuzu)] Chaldea Outdoor Challenge Abby-chan to Issho 2 (Fate/Grand Order) [Chinese] [靴下汉化组] [Digital]
(C94) [Moruda Ramenya (Moruda)] Okei-san no Nukinuki Dosukebe Challenge | Okay-san's Dirty Lewd Challenge (Girls und Panzer) [English] {Doujins.com}
[Higashino Mikan] Futomomo Sensation! (Monthly Vitaman 2015-10) [English] {NecroManCr}
[Karma Tatsurou] Tsuyuki | Rainsnow (Monthly Vitaman 2014-08) [English] =TV=
Monthly Vitaman 2017-12 [Digital]
Bodyswap between a monther and her son
Monthly Vitaman 2007-10
Monthly Vitaman 2006-11
Yuusha no Sairoku Hon Challenge
(C70) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Futakoi Challenge (Futakoi Alternative)
Seieki Tamekomi Challenge
(C86) [Contamination (eigetu)] Maki Nico Lesbian Challenge (Love Live!) [Chinese] [光年汉化组汉化]
Kaye-nee Challenging Herself in Volleyball
Futanari Milk Challenge 4 | 扶她榨乳挑战 4
(COMIC1☆7) [ASIANBOY (Hasemi Ryo)] Backstage Hibiki Challenge (THE IDOLM@STER)
Kyokon Shoujo Nyoudou Challenge!
Monthly Vitaman 2013-06
(Warabe Jitsuno Koukou Bunka Matsuri Duel Carnival) [Michu★Honey (Hikari.)] Kattobingu wa Challenge tte Kotoda ze! (Yu-Gi-Oh! Zexal)
Maki Nico Lez Challenge
Teisouring Challenge
[Fujisaka Kuuki] Koi Kano x Ai Kano Ch. 24 (Monthly Vitaman 2015-04) [Chinese] [樱翼汉化组]
(C94) [Moruda Ramenya (Moruda)] Okei-san no Nukinuki Dosukebe Challenge (Girls und Panzer)
[Momonosuke] Renai Icchokusen! (Monthly Vitaman 2014-09) [English] [Fated Circle]
[Hibon (Itami)] Yuu-kun CHALLENGE!! Kobe Hen [Digital]
Utsuho Challenge!!
[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Oneesan no Fudeoroshi Ver.4.1 [English] [wehasband]
Monthly QooPA 2014-12
(C82) [Marin (Suzusato Rinka, Mage)] Doujouyaburi no Kata wa Katteguchi e Omawari Kudasai | Challengers Please Present Yourself At The Back Door (Ranma 1/2) (English) [SaHa]
Monthly QooPA 2015-05
(SUPER24) [PureSlider (Matsuo)] MONTHLY THE IWATOVISION (Free!)
[Fujisaka Kuuki] Koi Kano x Ai Kano Ch. 21 (Monthly Vitaman 2014-12) [Chinese] [樱翼汉化组]
Kasshoku Oneesan no Fudeoroshi Ver. 4
Petit Xu Lewd Challenge + Extras
Kurokoshi You] Challenge Week
Monthly Vitaman 2009-10
(Futaket 14) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 3
Monthly Vitaman 2015-10 [Digital]
Monthly Vitaman 2018-04
[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]
Kodomo de Challenge 2
DokiDoki Mesuiki! Challenge!!
[Karma Tatsurou] Amasan (Monthly Vitaman 2013-04) [English] =LWB=
[ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 5 [Digital]
(C90) [Akausagi (Fukuyama Naoto)] 100 challenge (Hundred) [English] [Tigoris Translates]
Monthly MelomELO Nov.11,2012
[Mizu] Kids Challenge [English]
Monthly Vitaman 2015-05 [Digital]
[Miyahara Ayumu] Abunai Mizugi (Monthly Vitaman 2011-06) [English] [Japanzai]
Challenge! Hentai Majo Rensei
[Terujirou] Junior Dominating Senior Challenge! [RAW] [JAP]
Monthly Vitaman 2015-10
[ro] Ookami to Akazukin Ch. 2 (Monthly QooPA 2014-09) [Chinese] [E个人汉化] [Digital]
[Karma Tatsurou] Mini Tsuma (Monthly Vitaman 2012-03) [English] [Digital]
Monthly Vitaman 2018-05
MONTHLY THE IWATOVISION
(C86) [Yamakawa Denenhuukei (Yamada, Kawada)] HERE COMES A NEW CHALLENGER!! (High Score Girl) [Chinese] [oo君x赤蜘蛛聯合漢化]
Monthly Vitaman 2017-05 [Digital]
Backstage Hibiki Challenge
Kasen-chan no Jasen Rouraku Challenge