(C82) [Super Sentou, The Shakya (Fukutarou, Oke)] Gekkan Otona no RitsuMio Soukangou | Monthly Issue - First Release of Mio and Ritsu for Adults (K-On!) [English] [Yuri-ism]
Once A Month Visitor
[Milk Pudding (Jamcy)] Akane-chan Challenge! 4-kaime (VOICEROID) [Digital]
[Momonosuke] Kinpatsu no Shokunin-damashii (Monthly Vitaman 2018-01) [English] [Fated Circle] [Digital]
Futanari Milk Challenge 5 | 扶她榨乳挑战 5
(C95) [Taikan Kyohougumi (Azusa Norihee)] Sakura-chan to Oshigoto Challenge - Ona-Hole Challenge with Sakura (Cardcaptor Sakura)
Captain Saimin Icha Love Challenge
Monthly Vitaman 2011-07
(C63) [Kodomo Challenge (various)] Mainiti-ga-Kodomo-no-hi
Yuusha no Sairokubon Challenge
(C95) [Andorogynous (Kiyose Kaoru)] Futanari Milk Challenge 5
(C86) [Contamination (eigetu)] Maki Nico Lesbian Challenge (Love Live!) [Incomplete]
(C95) [Yamitsuki Honpo (Wise Speak)] JK Tamamo no Shuugaku Ryokou Oppai Challenge (Fate/Extra)
Yamahime No Jitsu August Extra Monthly Juku Onna Tengoku
(C94) [Minamono (Minamo)] Ko-Gil Challenge (Fate/Grand Order) [Chinese] [theoldestcat汉化]
Teisouring Challenge
Monthly Vitaman 2018-06
Monthly Vitaman 2017-05
Osananajimi-chan Ikase Challenge
(Stand Up! 29) [Kashitsuki (Momoko)] Ero Trap Dungeon no Challenger (Cardfight!! Vanguard)
Kasen-chan no Jasen Rouraku Challenge
(C92) [Slime Kikaku (Kuriyuzu Kuryuu)] Akatsuki no Oyome-san Challenge | Akatsuki's Bride Challenge (Kantai Collection -KanColle-) [English] {Doujins.com}
[Kyuu (Shooya Akira)] Futtou Challenge 2 rev.2 (Sora no Manimani)
Kasshoku Oneesan no Fudeoroshi SNS ha kiken na nioi
[The Monthly Istanbul (Ahugan Sugita)] Shotagari Witch [English] [q91] [Digital]
(C96) Dairoku! Otoile Challenge
(C94) [Bizensiki Roroppu (Bizen)] Oshiri Ecchi Challenge (Hatoba Tsugu)[Chinese][夏姬霸汉化组·改]
Monthly Vitaman 2018-07
9 Months With Ellie
(C94) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 4 | [番外篇]——快感觉醒!便器化的先辈! [Chinese] [鬼迷日眼的莱科少校个人川话化]
Monthly Vitaman 2015-10 [Digital]
[ro] Ookami to Akazukin Ch. 2 (Monthly QooPA 2014-09) [Digital]
[Fujisaka Kuuki] Koi Kano x Ai Kano Ch. 25 (Monthly Vitaman 2015-05) [Chinese] [樱翼汉化组]
Namaiki Kuchikukan Wakarase Challenge
(SC39) [Various (Various)] Hatena? Challenge! (Challenge First-Year-Student)
(C81) [Azuki Monaka (Takenouchi Suama)] Magical Saimin Challenge (Magical Halloween)
[d.a.p (mougi)] UnknownUltimateChallenge (CROSS x BEATS) [Digital] [Chinese] [这很恶堕汉化组]
Ishtar no Houkei Chinpo Mukimuki Challenge Jipponshoubu+Gojitudan
(C93) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 2
Ma Yumiko (jotaika) hon sanpuru Monthly Girls' Nozaki-kun sample
I Challenge You!
Namaiki Kuchikukan Wakarase Challenge | I'll Make You Understand Challenge
W Jeanne to Off-Paco Challenge
Monthly Vitaman 2013-03
(Futaba Gakuensai 9) [1000AP (Various)] Kodomo de Challenge 5
Chaldea Outdoor Challenge Abby-chan to Issho 2
Monthly Vitaman 2016-03
Monthly Vitaman 2009-10
Chaldea Outdoor Challenge Abby-chan to Issho 3
Monthly Vitaman 2014-12
[d.a.p (mougi)] UnknownUltimateChallenge (CROSS x BEATS) [Digital]
[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Onee-san no Fudeoroshi Ver. 7 - Brown Lady Takes His First Time Ver. 7 [English] [Decensored] [Digital]
Monthly QooPA 2015-01 [Digital]
Seieki Tamekomi Challenge
Monthly Vitaman 2013-06
[Juan Gotoh] San Jin San Getsu (Three People, Three Months) Ch. 1-3 [English]
(Kotonoha's Festa 2) [Milk Pudding (Jamcy)] Akane-chan Challenge! 2.5-kaime (VOICEROID)
[Yamitsuki Honpo (Wise Speak)] JK Tamamo no Shuugaku Ryokou Oppai Challenge (Fate/Extra)
[Yonemochi Akihiko] adult challenge 1
Ko-Gil Challenge
(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]
Tobira no Soto ni Ke tsuya no Ii Neko ga ita no de, Shitsukete Kaineko ni shite miru Challenge.
[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Oneesan no Fudeoroshi Ver. 5
(C94) [Fuwatoro★Marinepolis (Sumitomo)] Theater Challenge (THE IDOLM@STER MILLION LIVE!)
[Kuon Michiyoshi] HUNDRED GAME Ch. 7 (Monthly Vitaman 2015-06) [Chinese] [樱翼汉化组]
[deathALICE] Time of the Month (Girls' Frontline) [English]
[Karma Tatsurou] Mini Tsuma (Monthly Vitaman 2012-03) [Digital]
Monthly Vitaman 2007-08
(SUPER11) [Astonish (Naitou Naito)] Kodomo Challenge (Various) [English] [CrystalMeph]
[Jyoka] Igyou Kaikitan Hasshaku-sama (Monthly QooPA 2014-12) [Digital]
(Nikudarake!!!!!! Gachinko Butoukai in chaos) [Kasuga Kikaku (Terujirou)] Gekokujou ni Chousen! | Junior Dominating Senior Challenge! [English]
Petit Xu Lewd Challenge + Extras
[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Lolita Complex [Digital]
[ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 3 [Digital]
Supervised Monthly Ejaculation
[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Oneesan no Fudeoroshi Ver. 6 [Chinese] [cqxl自己汉化]
Akatsuki-chan Mayonaka no Otoile Challenge
Kanade Challenge Zenpen
Monthly UriboZakkaTen Jan.31,2020
[Kuon Michiyoshi] HUNDRED GAME Ch. 1 (Monthly Vitaman 2014-10) [English] [allenallenallen333]
[MemeXILE (Memeo)] Kodomo Challenge (Free!) [Digital]
(COMITIA97) [The Monthly Istanbul (Ahugan Sugita)] Bikyaku Zukan
Monthly Vitaman 2016-07
[Algolagnia (Mikoshiro Honnin)] Monthly Margareta inaugural issue "Entrance Information" vol.000
[Kon-Kit] Kaya-nee Volleyball ni Idomu | Ane☆Volleyball Challenge (Bishoujo Kakumei KIWAME Road 2012-12 Vol. 4) [English] [Malone] [Digital]
Monthly Vitaman 2014-02
[Karma Tatsurou] Reikan | Ghost Sense (Monthly Vitaman 2013-05) [English] {UsagiTrans}
[Usakun] Kongetsu no Wanko. | This Month's Doggy. (COMIC LO 2007-05) [English] [sirC]
Challenge Completed!
Monthly Vitaman 2007-09
(C92) [Andorogynous (Kiyose Kaoru)] Futanari Milk Challenge
Asuka 6 months
Monthly Vitaman 2017-10 [Digital]
[Sakura Garden (Shirosuzu)] Chaldea Outdoor Challenge Abby-chan to Issho | Chaldea Outdoor Challenge with Abby-chan (Fate/Grand Order) [English] [The Blavatsky Project] [Digital]
Monthly Vitaman 2018-01 [Digital]
Okusama Challenge - Challenge of Wife
(SC39) [Nounai Kanojo, Ningen Modoki, Tateyoko Hotchkiss, Kagi Node (various)] Hatena? Challenge! (Challenge First-Year-Student)
[Tomohiro Kai] HIDE AND PEEK (COMIC Kairakuten BEAST 2014-09) [English] [amaimono]
Eroi Bunnyue ni Shasei Gaman Shoubu o Idomu. | Challenging the Lewd Bunny to a Cum Endurance Battle.
(C86) [Yamakawa Denenhuukei (Yamada, Kawada)] HERE COMES A NEW CHALLENGER!! (High Score Girl) [Chinese] [oo君x赤蜘蛛聯合漢化]
[hal] Kinugasa Minto Keiki 1-nen 6-kagetsu | Kinugasa Minto Sentence 18 Months (Mesu Ana Muhou Chitai Muyou no Chitsu-nai-dashi Choueki) [English]
Yuusha no Sairoku Hon Challenge
(C86) [Yamakawa Den'enfuukei (Yamada, Kawada)] HERE COMES A NEW CHALLENGER!! (High Score Girl) [English] [FEPO]
(C64) [kodomo challenge (Various)] natsu no kansatsu nikki | Summer observation diary (Original) [English]
MONTHLY THE IWATOVISION
(C93) [Aozora Shoujo (Shirane Taito)] Rika no Oshiri Challenge (THE IDOLM@STER CINDERELLA GIRLS) [Chinese]
Backstage Hibiki Challenge
(SUPER24) [PureSlider (Matsuo)] MONTHLY THE IWATOVISION (Free!) [English] [ichigo-day]
Dairoku! Otoile Challenge2
[Sakura Garden (Shirosuzu)] Chaldea Outdoor Challenge Abby-chan to Issho 2 (Fate/Grand Order) [Digital]