[Juan Gotoh] San Jin San Getsu (Three People, Three Months) Ch. 1-3 [English]
Monthly Vitaman 2006-09
Yuusha no Sairokubon 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]
After A Month
Monthly Vitaman 2010-02
1-kagetsukan no Paradise | A Month of Paradise
UnknownUltimateChallenge
(C85) [Wasuraruru Tegami (Binsen)] Elf Shimai no Chousen | The Elf Sisters' Challenge [English] [Mistvern]
TS-kko Otokoyu Challenge!
[Homura Subaru] Milky Succubus Lyli 4 (Monthly QooPA 2015-02) [Digital]
[Mizone] Hito no Ashi yori Hebi no Ashi Miyo | Watch Out Where You Put Your Own Snake (Monthly QooPA 2014-09) [English] [thetsuuyaku] [Digital]
[Karma Tatsurou] Oo Tsuma (Monthly Vitaman 2011-12) [Digital]
[Fujisaka Kuuki] Opparadise wa Shinryouchu | 欧派天国诊疗中 Ch. 10 (Monthly Vitaman 2018-05) [Chinese] [前线作♂战♀基地] [Digital]
Monthly Vitaman 2016-10 [Digital]
[ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 3 [Digital]
(C90) [Akausagi (Fukuyama Naoto)] 100 challenge (Hundred) [English] [Tigoris Translates]
Challenge Week
(C94) [Bizensiki Roroppu (Bizen)] Oshiri Ecchi Challenge (Hatoba Tsugu)[Chinese][夏姬霸汉化组]
Monthly Vitaman 2006-12
UNKNOWN UNLOCK CHALLENGE | 크로스비츠 동인지
Monthly Vitaman 2018-01 [Digital]
Otou-san Challenge
Backstage Hibiki Challenge
(C92) [Slime Kikaku (Kuriyuzu Kuryuu)] Akatsuki no Oyome-san Challenge (Kantai Collection -KanColle-) [Chinese] [脸肿汉化组]
[d.a.p (mougi)] Unknown Unlock Challenge (CROSS x BEATS) [Chinese] [这很恶堕汉化组] [Digital]
Kasshoku Oneesan no Fudeoroshi SNS ha kiken na nioi
An NTR Day Per Month - Husband Pretends Not To See It Before Her
Takagi Airi no 10-pun Challenge | Takagi Airi's 10 Minute Challenge
Namaiki Kuchikukan Wakarase Challenge
Monthly Vitaman 2014-02
DT Chinpo 100-pon Acme Challenge!! | 100 Virgin Cock Orgasm Challenge!!
(Nikudarake!!!!!! Gachinko Butoukai in chaos) [Kasuga Kikaku (Terujirou)] Gekokujou ni Chousen! | Junior Dominating Senior Challenge! [English]
(Utahime Teien 4) ["Tsu" ga Mittsu. (Tsuttsu)] Akane Challenge!? 2 (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [无毒汉化组]
(Warabe Jitsuno Koukou Bunka Matsuri Duel Carnival) [Michu★Honey (Hikari.)] Kattobingu wa Challenge tte Kotoda ze! (Yu-Gi-Oh! Zexal)
Maki Challenge
[Yonemochi Akihiko] adult challenge 1
Monthly QooPA 2013-10
Twin Challenge ch. 1
[Karma Tatsurou] Mini Tsuma (Monthly Vitaman 2012-03) [Digital]
Kanoka Challenge_plot 2
Captain Saimin Icha Love Challenge
Kuroshio Challenge
(SC39) [Nounai Kanojo, Ningen Modoki, Tateyoko Hotchkiss, Kagi Node (various)] Hatena? Challenge! (Challenge First-Year-Student)
Gessha 20-man no Katei Kyoushi | Working as a Home Tutor for 200 Thousand Yen per Month
Monthly Vitaman 2018-05
Futanari Milk Challenge
Monthly Vitaman 2018-02 [Digital]
Akatsuki-chan Mayonaka no Otoile Challenge
[Fujisaka Kuuki] Koi Kano x Ai Kano Ch. 24 (Monthly Vitaman 2015-04) [Chinese] [樱翼汉化组]
(C92) [Milk pudding (Jamcy)] Akane-chan Challenge! (VOICEROID)
[Sakura Garden (Shirosuzu)] Chaldea Outdoor Challenge Abby-chan to Issho | Chaldea Outdoor Challenge with Abby-chan (Fate/Grand Order) [English] [The Blavatsky Project] [Digital]
Ero Trap Dungeon no Challenger
[Black Age (Kurono Masakado)] Detective Collection VOL. 01 (Detective Conan) [Digital]
(C83) [Algolagnia (Mikoshiro Honnin)] Monthly Margareta Vol. 1 Event Henshuuban
(C83) [Super Sentou, The Shakya (Fukutarou, Oke)] Gekkan Otona no RitsuMio Zoukangou | Monthly RitsuMio for Adults - Special Edition (K-On!) [English] [Yuri-ism]
[The Monthly Istanbul (Ahugan Sugita)] Shotagari Witch [Digital]
W Jeanne to Off-Paco Challenge
[RoriE-Do] VS Kishi no Honoo no Challenger (VS Knight Lamune & 40 Fire)
Gekkan Comic Guts Re: | Monthly Comic Guts Re:
(C86) [Contamination (eigetu)] Maki Nico Lesbian Challenge (Love Live!) [Incomplete]
Chaldea Outdoor Challenge Abby-chan to Issho
CHALLENGE
Monthly Vitaman 2018-03
Monthly Vitaman 2016-12
Tsuki Ichi Onnanoko | Monthly Girl
Gekkan "Za Bicchi" wo Mita Onna no Hannou ni Tsuite | About the Reaction of the Girl Who Saw "The Bitch Monthly"
(C59) [Dish up, ONE COIN (Warabi Yuuzou)] Monthly Pace No. 2 (Street Fighter)
Iemoto Challenge Series - Jinrui Hasshou no Chi de Mikai no Buzoku to Bunka Kouryuu Isshuukan
Hatsuzuki to Muremure Muramura Natsu Ecchi! | Having Stuffy Sex On The First Month Of Summer!
ETD Challenge.
Supervised Monthly Ejaculation
Pancakes Challenge
Eroi Bunnyue ni Shasei Gaman Shoubu o Idomu. | Challenging the Lewd Bunny to a Cum Endurance Battle.
#SoniCha Ikuiku Challenge