Month Challenge

Maki Nico Lez Challenge

Mont Barbara no Inran Shimai | Laissez Fayre Horny Sisters

(Warabe Jitsuno Koukou Bunka Matsuri Duel Carnival) [Michu★Honey (Hikari.)] Kattobingu wa Challenge tte Kotoda ze! (Yu-Gi-Oh! Zexal)

[d.a.p (mougi)] UnknownUltimateChallenge (CROSS x BEATS) [Digital]

Monthly Vitaman 2006-11

Ishtar no Houkei Chinpo Mukimuki Challenge Jipponshoubu+Gojitudan

Monthly Vitaman 2007-09

UNKNOWN UNLOCK CHALLENGE | 크로스비츠 동인지

Monthly Vitaman 2015-11

[Karma Tatsurou] Irekawa (Monthly Vitaman 2011-07) [English] [Renaissance Da Vinci Translation] [Incomplete]

Rika no Oshiri Challenge

Monthly Vitaman 2015-08

Gessha 20-man no Katei Kyoushi | Working as a Home Tutor for 200 Thousand Yen per Month

[Fujisaka Kuuki] Koi Kano x Ai Kano Ch. 21 (Monthly Vitaman 2014-12) [Chinese] [樱翼汉化组]

[Fanbox] Kanzarin [Hentai of the month] (4012732)

[Fujisaka Kuuki] Opparadise wa Shinryouchu | 欧派天国诊疗中 Ch. 9 (Monthly Vitaman 2018-04) [Chinese] [前线作♂战♀基地] [Digital]

Dosei 1-kagetsu | Rooming together for a month

[Karma Tatsurou] Irekawa (Monthly Vitaman 2011-07) [English] [Blackgrunt] [Sensualaoi] {Re-set v2}

[Ohmi Takeshi] Gekkan Aikawa Henshuuchou - Monthly "Aikawa" The Chief Editor 1

[Karma Tatsurou] Amasan (Monthly Vitaman 2013-04) [English] =LWB= [Colorized]

Kanoka Challenge_plot 2

[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Oneesan no Fudeoroshi Ver. 6 | Brown Lady Takes His First Time Ver. 6 [English] [Decensored] [Copy Of]

Monthly Vitaman 2018-03 [Digital]

[Karma Tatsurou] Saraware (Monthly Vitaman 2012-08) [Chinese]

[KAREHANEKO (Himitaka)] Extend Hiryuu Challenge (Strider Hiryuu) [Digital]

Monthly Vitaman 2018-02 [Digital]

[The Monthly Istanbul (Ahugan Sugita)] Shotagari Witch [Digital]

催眠天国 Challenge 03

(C86) [Marked-two (Hideo)] Taihou Challenge! (Kantai Collection -KanColle-)

Naisho no Enkou Challenge | 不可告人的援交挑战

[Mikeke] Hatena Manga - Semete Yacchae! (Challenge First-Year-Student)

(C64) [kodomo challenge (Various)] natsu no kansatsu nikki | Summer observation diary (Original) [English]

[Yonemochi Akihiko] adult challenge 1

Monthly 'Aikawa' The Chief Editor Chp. 1

[The Monthly Istanbul (Ahugan Sugita)] Shotagari Witch [English] [q91] [Digital]

[Kuon Michiyoshi] HUNDRED GAME Ch. 11 (Monthly Vitaman 2015-11) [Chinese] [樱翼汉化组]

(SUPER24) [PureSlider (Matsuo)] MONTHLY THE IWATOVISION (Free!) [Chinese] [绅士仓库汉化]

(C64) [kodomo challenge (Various)] Natsu no Kansatsu Nikki

Monthly Megastore 2021-12

Semen Storage Challenge

Monthly Vitaman 2013-02

#SoniCha Ikuiku 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]

Monthly Gekiman Special 2013-06 [Incomplete]

(Nikudarake!!!!!! Gachinko Butoukai in chaos) [Kasuga Kikaku (Terujirou)] Gekokujou ni Chousen! | Junior Dominating Senior Challenge! [English]

Doki doki♡ Ticket Challenge!

Akane Challenge!? 2

[MemeXILE (Memeo)] Kodomo Challenge (Free!) [Digital]

[Comeon Showme] Unhappy Now Year (Monthly Vitaman 2013-02) [English] [Krozam]

Futanari Milk Challenge 3 | 扶她榨乳挑战 3

[sky & si-o] 罪世 - バーサーカーチャレンジ | Tsumi Yo - Berserker Challenge [EN]

Monthly 'Aikawa' The Chief Editor Chp. 7

[inari mochi] Swimsuit Challenge

(C93) [Milk pudding (Jamcy)] Akane-chan Challenge! 2-kaime (VOICEROID) [Chinese] [脸肿汉化组]

Makabe no Oshiri Challenge

MONTHLY THE IWATOVISION

[Momonosuke] Inaka no Aji wa Koi no Aji? (Monthly Vitaman 2016-05) [English] [Fated Circle]

Monthly Vitaman 2018-06

JK Tamamo no Shuugaku Ryokou Oppai Challenge

Otona Challenge!!

Kanoka Challenge_plot 3

[Mizone] Hito no Ashi yori Hebi no Ashi Miyo | Watch Out Where You Put Your Own Snake (Monthly QooPA 2014-09) [Chinese] [沒有漢化] [Digital]

[Sakura Garden (Shirosuzu)] Chaldea Outdoor Challenge Abby-chan to Issho 2 (Fate/Grand Order) [Chinese] [靴下汉化组] [Digital]

[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Onee-san no Fudeoroshi SNS wa Kiken na Nioi [Chinese] [cqxl自己汉化]

[ro] Ookami to Akazukin Ch. 3 (Monthly QooPA 2014-11) [Chinese] [落莲汉化组] [Digital]

Monthly Vitaman 2018-05 [Digital]

[Momonosuke] Kinpatsu no Shokunin-damashii (Monthly Vitaman 2018-01) [English] [Fated Circle] [Digital]

[Kogasaki Yuina] JK Tamamo no Shuugaku Ryokou Oppai Challenge (Fate/Grand Order)

Futanari Milk Challenge 2 | 迫真水泳部・扶她的里技―第二章

[Higashino Mikan] Futomomo Sensation! (Monthly Vitaman 2015-10) [English] {NecroManCr}

[Mizu] PokaPoka After (Kids Challenge) [English] [QTR]

[Rapan (Himuro Shizuku)] Gekkan Duelist 11 - vol.03 | Monthly Duelist 11 - vol.3 (Yu-Gi-Oh! 5D's ) [English] [Utopia]

[Taikan Kyohougumi (Azusa Norihee)] Sakura-chan to Oshigoto Challenge - Ona-Hole Challenge with Sakura (Cardcaptor Sakura) [English] [Digital]

(C92) [Slime Kikaku (Kuriyuzu Kuryuu)] Akatsuki no Oyome-san Challenge | Akatsuki's Bride Challenge (Kantai Collection -KanColle-) [English] {Doujins.com}

[Kuon Michiyoshi] HUNDRED GAME Ch. 2 (Monthly Vitaman 2014-11) [Chinese] [樱翼汉化组]

Misaki-chan no Lotion Challenge

[Croriin]~Succubus Challenge~(Isekai Rakuten Vol.5)[Chinese][星瞳漢化]

(C86) [Yamakawa Den'enfuukei (Yamada, Kawada)] HERE COMES A NEW CHALLENGER!! (High Score Girl) [English] [FEPO]

Tanpan Kozou no Oppai Gym Challenge!

Matsuno Osomatsu no Sex Challenge

Kagi Catch Challenge 2

(C77) [Kyuu (Shooya Akira)] Futtou Challenge (Sora no Manimani)

[ViperXTR] I Challenge You! (Kono Subarashii Sekai ni Syukufuku o!) [English]

Hana Challenge!

(C94) [Minamono (Minamo)] Ko-Gil Challenge (Fate/Grand Order)

CHALLENGE

Monthly Vitaman 2009-09

Demonic Onsen Paizuri (EscapeFromExpansion)

(C93) [Komatta Tomato (Yuuki Miyabi)] Akatsuki-chan Mayonaka no Otoile Challenge (Kantai Collection -KanColle-)

Monthly Vitaman 2007-11

Monthly Vitaman 2007-08

[Kinomoto Anzu] Akari Challenge (Chiisana Karada no Dakigokochi) [English] [TQM_Translations]

Kasshoku Oneesan no Fudeoroshi Ver.4.1 

[Abubu] Iemoto Challenge Series - Jinrui Hasshou no Chi de Mikai no Buzoku to Bunka Kouryuu Isshuukan (Girls und Panzer)

Monthly Vitaman 2014-02

[RoriE-Do] VS Kishi no Honoo no Challenger (VS Knight Lamune & 40 Fire)

Yuusha no Sairokubon Challenge

[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Oneesan no Fudeoroshi Ver. 6

(C94) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 4

Nazrin no Yobai Challenge!

Monthly Vitaman 2016-06

(Futaba Gakuensai 8) [1000AP (Various)] Kodomo de Challenge 4 (Futaba Channel)

Monthly Vitaman 2014-08

Challenge Completed!

(SC39) [Various (Various)] Hatena? Challenge! (Challenge First-Year-Student)

Seieki Tamekomi Challenge

Namaiki Kuchikukan Wakarase Challenge | I'll Make You Understand Challenge

[Fanbox] Kanzarin [Hentai of the month] (3648356)

Monthly Vitaman 2008-08

(C94) [Sakura Garden (Shirosuzu)] Chaldea Outdoor Challenge Abby-chan to Issho (Fate/Grand Order) [Chinese] [脸肿汉化组]

Yui-chan SEX Challenge!!