(C86) [Contamination (eigetu)] Maki Nico Lez Challenge (Love Live!) [Incomplete]
Dairoku! Otoile Challenge2
ETD Challenge.
Kids Challenge
Monthly QooPA 2014-12
Ko-Gil Challenge
(C92) [Slime Kikaku (Kuriyuzu Kuryuu)] Akatsuki no Oyome-san Challenge (Kantai Collection -KanColle-)
Kanade Challenge Kouhen
[Terujirou] Junior Dominating Senior Challenge! [RAW] [JAP]
Monthly Vitaman 2014-09
(SUPER11) [Astonish (Naitou Naito)] Kodomo Challenge (Various)
(C88) [Shinobi-Rocket (Sasamashin)] Akatsuki Challenge! (Kantai Collection -KanColle-)
(C63) [Kodomo Challenge (various)] Mainiti-ga-Kodomo-no-hi
(C94) [Sakura Garden (Shirosuzu)] Chaldea Outdoor Challenge Abby-chan to Issho (Fate/Grand Order) [Chinese] [脸肿汉化组]
Imasara Shampoo Bottle Challenge o Suru Suieibu Coach no Manga
MONTHLY THE IWATOVISION
Monthly Vitaman 2013-06
(C94) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 4
[Kuon Michiyoshi] HUNDRED GAME Ch. 3 (Monthly Vitaman 2014-12) [Chinese] [樱翼汉化组]
Etorofu-gata Muchikko Kodomo Challenge
[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Oneesan no Fudeoroshi Ver. 3 | Brown Lady Takes His First Time Ver. 3 [English] [vaasi] [Decensored] [Digital]
Doki doki♡ Ticket Challenge!
Iemoto Challenge Series - Jinrui Hasshou no Chi de Mikai no Buzoku to Bunka Kouryuu Isshuukan
Jeanne no Nikubenki Challenge
Monthly Vitaman 2014-02
(C94) [Moruda Ramenya (Moruda)] Okei-san no Nukinuki Dosukebe Challenge | Okay-san's Dirty Lewd Challenge (Girls und Panzer) [English] {Doujins.com}
Futanari Milk Challenge 3 | 迫真水泳部・扶她的里技―第三章
[Usakun] Kongetsu no Wanko. | This Month's Doggy (Hatsukoi! Lyrical H) [English] [Digital]
Monthly Vitaman 2015-05 [Digital]
Monthly Vitaman 2009-08
Kasshoku Oneesan no Fudeoroshi Ver. 4
[Shigaoka Touki] Kekkon Suru Nara Mesuneko to | If It's Getting Married, a Catgirl... (Monthly Vitaman 2015-04) [English] [Krozam]
[Momonosuke] Kinpatsu no Shokunin-damashii (Monthly Vitaman 2018-01) [English] [Fated Circle] [Digital]
Monthly MelomELO Apr.2016
Monthly Vitaman 2016-06
(C78) [Nounai Kanojo (Kishiri Toworu)] Remilia kara no Chousenjou | Remilia's Challenge (Touhou Project) [English] [UMAD]
[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]
W Jeanne to Off-Paco Challenge
Ero Trap Dungeon no Challenger
Dairoku! Otoile Challenge 2
Rika no Oshiri Challenge
[Bobobo] Hito Tsukiburi | After A Month (PLDK) [English] =LWB= [Decensored]
#SoniCha Ikuiku Challenge
After A Month
An NTR Day Per Month - Husband Pretends Not To See It Before Her
Eroi Bunnyue ni Shasei Gaman Shoubu o Idomu. | Challenging the Lewd Bunny to a Cum Endurance Battle.
[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Oneesan no Fudeoroshi Ver. 3 [Chinese] [cqxl自己汉化] [Digital]
Futanari Milk Challenge 3
(C59) [Dish up, ONE COIN (Warabi Yuuzou)] Monthly Pace No. 2 (Street Fighter)
(C86) [Marked-two (Hideo)] Taihou Challenge! (Kantai Collection -KanColle-) [Chinese] [CE家族社]
Monthly Vitaman 2007-08
Hatsuzuki to Muremure Muramura Natsu Ecchi! | Having Stuffy Sex On The First Month Of Summer!
[Mizone] Onigashima no Kyokon (Monthly QooPA 2014-11) [Digital]
JC Chinpo-beya Ikkagetsu Seikatsu Challenge!
(C94) [Minamono (Minamo)] Ko-Gil Challenge (Fate/Grand Order)
Monthly Vitaman 2015-09
[Kuon Michiyoshi] HUNDRED GAME Ch. 4 (Monthly Vitaman 2015-02) [Chinese] [樱翼汉化组]
(SUPER24) [PureSlider (Matsuo)] MONTHLY THE IWATOVISION (Free!) [English] [ichigo-day]
[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]
TS-kko Otokoyu 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]
Girls from a Prestigious School Challenged to an Escape Game
Monthly Vitaman 2007-11
Chaldea Outdoor Challenge Abby-chan to Issho 3
Monthly Vitaman 2007-02
Namaiki Kuchikukan Wakarase Challenge
Monthly Vitaman 2007-03
[Kuon Michiyoshi] HUNDRED GAME Ch. 1 (Monthly Vitaman 2014-10) [English] [allenallenallen333]
Monthly Vitaman 2018-02 [Digital]
[ro] Ookami to Akazukin Ch. 2 (Monthly QooPA 2014-09) [Chinese] [E个人汉化] [Digital]
Monthly Vitaman 2017-11 [Digital]
[Yurikawa] Futago Challenge | Twin Challenge (Toshiue Kanojo Alternative) [English] [PSYN+DMD]
[Kon-Kit] Kaya-nee Volleyball ni Idomu | Ane☆Volleyball Challenge (Bishoujo Kakumei KIWAME Road 2012-12 Vol. 4) [English] [Malone] [Digital]
G◎M
[Bobobo] Hito Tsukiburi | After A Month (PLDK) [English] =LWB=
JK Tamamo no Shuugaku Ryokou Oppai Challenge
[RoriE-Do] VS Kishi no Honoo no Challenger (VS Knight Lamune & 40 Fire)
[R2 (Rakko)] Yuusha no Chousenjou 3 Senshi ni Love Song o | Hero's Challenge 3 (Dragon Quest III) [English] =thetsuuyaku= [Digital]
[Metacorapusu (Metacora)] JC Chinpo-beya Ikkagetsu Seikatsu Challenge! (Zenpen) | One-month lifestyle challenge: Rooming in an apartment filled with dicks! Part 1 [Digital] [English] [Team Rabu2]
[Satuyo] Pool de Challenge! Boyish | Challenge at the Pool! Boyish (Peaceful Ecchi!) [English] [Doki Fansubs+Yosh]
[Molossan (Morochin-san)] Dokidoki Mesuiki! Challenge!! ~Cosplay Uriko Hen~ (Hacka Doll, Kantai Collection -Kancolle-) [Chinese] [瑞树汉化组] [Digital]
Monthly Vitaman 2006-11
(C86) [Yamakawa Den'enfuukei (Yamada, Kawada)] HERE COMES A NEW CHALLENGER!! (High Score Girl)
(Dramatic Change 3) [Ne. (Shiromitsu Daiya)] Challenge! Ochinchin Purupuruen ~3-nin nara Dekiru Mo~n~ (THE IDOLM@STER SideM)
(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 2015-05
[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Oneesan no Fudeoroshi Ver. 4 [English] [Decensored] [Copy Of] [Digital]
Monthly Vitaman 2017-04 [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]
[Sakura Garden (Shirosuzu)] Chaldea Outdoor Challenge Abby-chan to Issho 2 (Fate/Grand Order) [Chinese] [靴下汉化组] [Digital]
Six Fanarts Challenge NSFW Pack
(C86) [Yamakawa Den'enfuukei (Yamada, Kawada)] HERE COMES A NEW CHALLENGER!! (High Score Girl) [English] [FEPO]
Kyogo ~Kunoichi Water Torture Challenge~
Dokidoki Mesu Ochi Gohoushi Challenge
Petit Xu Lewd Challenge + Extras
[Karma Tatsurou] Amasan (Monthly Vitaman 2013-04) [English] =LWB=