1 Month Challenge

Yuusha no Sairokubon Challenge

(Kono Koe Todoke, Tsuki made mo Yon) [Milk Pudding (Jamcy)] Akane-chan Challenge! 3-kaime (VOICEROID)

Futanari Milk Challenge 3 | 迫真水泳部・扶她的里技―第三章

Challenge! Hentai Majo Rensei

[MelonBooks] Monthly MelomELO Jun.2014

(C95) [Labomagi! (Takeda Aranobu)] W Jeanne to Off-Paco Challenge (Fate/Grand Order)

Monthly Comic Guts RE

Monthly Vitaman 2016-09

[Ohmi Takeshi] Gekkan Aikawa Henshuuchou 2 - Monthly "Aikawa" The Chief Editor 2 [English] {antihero27}

(C95) [Taikan Kyohougumi (Azusa Norihee)] Sakura-chan to Oshigoto Challenge - Ona-Hole Challenge with Sakura (Cardcaptor Sakura) [English] [biribiri]

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

Kasen-chan no Jasen Rouraku Challenge

Kanoka Challenge_plot 2

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

[Momonosuke] Sex Communication (Monthly Vitaman 2017-01) [Chinese] [不負責任個人漢化]

Monthly Vitaman 2010-01

Monthly Vitaman 2009-09

Tanpan Kozou no Oppai Challenge!

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

Challenge Days

[Mizone] Onigashima no Kyokon (Monthly QooPA 2014-11) [Digital]

Monthly UriboZakkaTen Jan.31,2020

Monthly UriboZakkaTen Feb.28,2020

[dotsuco] Nametake Challenge!

[Mizu] Kids Challenge [English]

Monthly Vitaman 2015-05

Demonic Onsen Paizuri (EscapeFromExpansion)

Challenge Hanayome Ichinensei

[Ponkotsu Works] Blind Ecchi! SideA (Monthly Vitaman 2014-09) [Chinese] {G&魔皮卡的女子力研究}

[Sakura Garden (Shirosuzu)] Chaldea Outdoor Challenge Abby-chan to Issho 3 (Fate/Grand Order) [Chinese] [一只麻利的鸽子汉化] [Digital]

(C92) [MeltdoWN COmet (Yukiu Con)] Kanade Challenge Zenpen

Monthly Vitaman 2018-03

Nozomi, the wife who is cucked and filmed once a month

Okusama Challenge - Challenge of Wife

DT Chinpo 100-pon Acme Challenge!!

(C94) [Moruda Ramenya (Moruda)] Okei-san no Nukinuki Dosukebe Challenge | Okay-san's Dirty Lewd Challenge (Girls und Panzer) [English] {Doujins.com}

adult challenge 1

Naisho no Enkou Challenge | Secret Sugar Daddy Challenge

[Metacorapusu (Metacora)] JC Chinpo-beya Ikkagetsu Seikatsu Challenge!! (Kouhen) | Middle Schooler in a Cock Filled Room for 1 Month Challenge!! (Pt. 2) [English] [DMC] [Digital]

Monthly Vitaman 2009-10

UNKNOWN UNLOCK CHALLENGE | 크로스비츠 동인지

Monthly Vitaman 2007-02

Akari Challenge

(C93) [MeltdoWN COmet (Yukiu Con)] Kanade Challenge Kouhen [Chinese] [Lolipoi汉化组]

Kagi Catch Challenge

1-kagetsukan no Paradise | A Month of Paradise

Rika no Oshiri Challenge

Futanari Milk Challenge 2 | 扶她榨乳挑战2

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

Monthly Vitaman 2013-10

Kasshoku Oneesan no Fudeoroshi Ver. 4

[Kuon Michiyoshi] HUNDRED GAME Ch. 1 (Monthly Vitaman 2014-10) [Chinese] [樱翼汉化组]

[Utsutenkai (Shirizou)] Katabutsu Iinchou to NTR Play ni Challenge Suru Hon / Book About A Tightly Wound School Council President Challenging Herself To Do Some NTR Play [English] {Doujins.com}

[Senbon Torii] FallenXXangeL The Last Stage 1 FULLCOLOR (Injuu Seisen Twin Angels) [Digital]

[Jyoka] Igyou Kaikitan Hasshaku-sama (Monthly QooPA 2014-12) [Digital]

(Futaba Gakuensai 9) [1000AP (Various)] Kodomo de Challenge 5

[Mikeke] ろり陵育　お漏らし編

UnknownUnlockChallenge

[deadflow] Ui (Kukagetsu) | Ui (Eight months pregnant) (Blue Aka-chan IN-bu) (Blue Archive) [Chinese] [Digital]

(C92) [Slime Kikaku (Kuriyuzu Kuryuu)] Akatsuki no Oyome-san Challenge (Kantai Collection -KanColle-)

[Kameyoshi Ichiko] Kanako Challenge (COMIC LO 2020-09) [English] [LoliAce] [Digital]

Monthly Vitaman 2014-12

[Karma Tatsurou] Mini Tsuma (Monthly Vitaman 2012-03) [Digital]