1 Month Challenge

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

(C93) [Aozora Shoujo (Shirane Taito)] Rika no Oshiri Challenge (THE IDOLM@STER CINDERELLA GIRLS)

Taiwan Comic Monthly

Kanoka Challenge_plot 3| 花乃香的难题_情节3

Namanama Shandy Gaff (nf4)] Lap-sama no Dosukebe AV Challenge ~ Jokanbu o Soete (Laplus Darknesss, Takane Lui) [Digital]

[AXZ (Katatuka Kouji)] Yui-chan SEX Challenge!! (Yuyushiki) [Digital]

[Mariana Kaikou Kikaku (Mikami Hokuto)] Shimakaze-kun Challenge Shite Itara, Mogami-kun ni Encount Shita Ken. (Kantai Collection -KanColle-) [Digital]

U Challenge

(Motto Warunodesu... Ouji) [Sakura Garden (Shirosuzu)] Aisha Challenge Renji ☆ 4 | 爱莎的☆4挑战 (Sennen Sensou Aigis) [Chinese] [DarkZ]

Akane Challenge!? 2

Monthly 'Aikawa' The Chief Editor Chp. 3

(SUPER11) [Astonish (Naitou Naito)] Kodomo Challenge (Various) [English] [CrystalMeph]

At first glance, it looks like a man swimsuit challenge + Textless + Bonus

Futanari Milk Challenge

Kaye-nee Challenging Herself in Volleyball

Monthly Vitaman 2016-10 [Digital]

Monthly Vitaman 2009-08

Onna Kentoushi no Shakuhou o Kaketa Chousen | The Liberation Challenge of a Female Knight

Futanari Milk Challenge 3

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

Getsumatsu Daikanshasai | End of the Month Appreciation Event

Honoka Challenge! 2

(C93) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 2

Yuusha no Sairoku Hon Challenge Omake Manga

Prinz Eugen Otokoyu Sennyuu Challenge

(C90) [Akausagi (Fukuyama Naoto)] 100 challenge (Hundred)

Kasshoku Onee-san no Fudeoroshi Yume to Kibou no Bikini Armour

[Mizone] Hito no Ashi yori Hebi no Ashi Miyo (Monthly QooPA 2014-09) [Digital]

Saimin Tengoku Challenge 04

[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 Comic Guts RE

Monthly Vitaman 2009-10

[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]

[Kuon Michiyoshi] HUNDRED GAME Ch. 3 (Monthly Vitaman 2014-12) [Chinese] [樱翼汉化组]

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

(C101) [chori (Chorimokki)] Nanjamo to Ura Gym Challenge!! (Pokémon Scarlet and Violet)

Dousei Seikatsu Ikkagetsume to Ichinen Ato, Asaokite kara Shuushin made no Hikaku | A Day in the Life of a Couple: Their First Month Living Together vs. One Year Later

Yousei-san no?! Himitsu no Bouken no Tobira Preview ver

Jisatsu Challenge | 自殺挑戰

[d.a.p] UnknownUnlockChallenge

Monthly Vitaman 2017-05

Monthly Vitaman 2014-07

Shimakaze-kun no Hatten Toilet Challenge!

[Nekomata Naomi] Here Comes a New Challenger! (COMIC Kairakuten Beast 2007-04) [English] [Clearly Guilty Translations]

Kanako Challenge

(C94) [Fuwatoro★Marinepolis (Sumitomo)] Theater Challenge (THE IDOLM@STER MILLION LIVE!)

Ko-Gil Challenge

[Nishina Satomi] Kyokan-kun to Kogara-chan Shinchousa 43-centi de SEX Challenge - Giant and a small lady.

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

Male Swimsuit Challenge

Monthly Vitaman 2013-05

Dairoku! Otoile Challenge2

[Pyonchi Koubou (Pyonchi)] Dosukebe Muramatsuri 1 - Jigoku no Cli Zeme Mesugaki Taikyuu Renzoku Acme Challenge Hen

[Karma Tatsurou] Saigo no Omoide | One Last Memory (Monthly Vitaman 2013-09) [English] [UsagiTrans]

[MelonBooks] Monthly MelomELO Feb.25,2013

[Mizu] Kids Challenge

Futanari Milk Challenge | 扶她榨乳挑战

Utsuho Challenge!! ~Yobai ni Chousen~

[FAVORITE] Moe Monthly FAVORITE (core Mook Series 599)

Monthly Vitaman 2015-06

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

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

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

Kyokon Shoujo Nyoudou Challenge!

Okei-san no Nukinuki Dosukebe Challenge

[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]

Monthly Vitaman 2007-04

[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Oneesan no Fudeoroshi Ver. 5 [English] [Uncensored]

(C92) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge [English] {Hennojin}

(Motto Warunodesu... Ouji) [Sakura Garden (Shirosuzu)] Aisha Challenge 4 (Sennen Sensou Aigis)

[Homura Subaru] Milky Succubus Lyli 4 (Monthly QooPA 2015-02) [Digital]

Doki Doki ❤ Ticket Challenge!

Kanoka Challenge_plot 2

[Sakura Garden (Shirosuzu)] Chaldea Outdoor Challenge Abby-chan to Issho | Chaldea Outdoor Challenge with Abby-chan (Fate/Grand Order) [English] [The Blavatsky Project] [Digital]

(C101) [chori (Chorimokki)] Nanjamo to Ura Gym Challenge!! | 奇树的秘密相声挑战!! (Pokémon Scarlet and Violet) [Chinese] [我今天爆炸了个人汉化]

Monthly Gekiman Special 2013-06 [Incomplete]

Riko to Prushka no Paizuri Challenge

Monthly Vitaman 2016-02

Hana Challenge!

Akatsuki no Oyome-san Challenge | Akatsuki's Bride Challenge

Monthly Vitaman 2017-01

Demonic Onsen Paizuri (EscapeFromExpansion)

[deadflow] Ui (Kukagetsu) | Ui (Eight months pregnant) (Blue Aka-chan IN-bu) (Blue Archive) [English] [Team Rabu2] [Decensored] [Digital]

(Futaba Gakuensai 7) [1000AP (Various)] Kodomo de Challenge 3 (Futaba Channel)

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

Kasshoku Oneesan no Fudeoroshi Ver. 3

Kasshoku Oneesan no Fudeoroshi Ver. 4

Hina Iinchou Amae Heta Kokufuku Challenge

Kasshoku Onee-san no Fudeoroshi Kyou mo Himitsu no Seikatsu Shidou

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

[Fujisaka Kuuki] Koi Kano x Ai Kano Ch. 23 (Monthly Vitaman 2015-03) [Chinese] [樱翼汉化组]

Monthly QooPA 2013-10

(C83) [Super Sentou, The Shakya (Fukutarou, Oke)] Gekkan Otona no RitsuMio Zoukangou | Monthly RitsuMio for Adults - Special Edition (K-On!) [English] [Yuri-ism]

Monthly Vitaman 2014-12

[Kuon Michiyoshi] HUNDRED GAME Ch. 9 (Monthly Vitaman 2015-09) [Chinese] [樱翼汉化组]

[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]

[Takeya (Taketora Suzume)] Kuroshio Challenge (Kantai Collection -KanColle-) [Digital]

[Fujisaka Kuuki] Koi Kano x Ai Kano Ch. 24 (Monthly Vitaman 2015-04) [Chinese] [樱翼汉化组]

(C85) [Wasuraruru Tegami (Binsen)] Elf Shimai no Chousen | The Elf Sisters' Challenge [English] [Mistvern]

[Hinemosuan (Hinemosu Notari)] Asuda-san Challenge (Nijiket)

[Tenchuugumi] Queen Sayoko's Challenge (Ah! My Goddess!) English

[Kuon Michiyoshi] HUNDRED GAME Ch. 10 (Monthly Vitaman 2015-10) [Chinese] [樱翼汉化组]

[Metacorapusu (Metacora)] JC Chinpo-beya Ikkagetsu Seikatsu Challenge!! (Kouhen) [Digital]

Iemoto Challenge Series - Jinrui Hasshou no Chi de Mikai no Buzoku to Bunka Kouryuu Isshuukan

(C97) [Yusei Haguruma (Victanyas)] Namaiki Kuchikukan Wakarase Challenge | I'll Make You Understand Challenge (Azur Lane) [English] [LoliLab Translations]

Onii-chan swallowing challenge！

[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Onee-san no Fudeoroshi Ver. 7 [Chinese] [cqxl自己汉化] [Digital]

Kasshoku Oneesan no Fudeoroshi Ver.4.1 

Taiwan Comic Monthly

Monthly Vitaman 2007-02

[Corundum] A Challenger Has Appeared Which Naturally Leads To A Duel | Chousensha ga Arawareta - Shizen na Nagare de Kettou (Fate Grand Order) [English] [FMLTranslations]

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

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

Karaoke Challenge

Cute Jolyne Lewd Challenge + Extras

[Kuon Michiyoshi] HUNDRED GAME Ch. 4 (Monthly Vitaman 2015-02) [Chinese] [樱翼汉化组]

After A Month

Monthly Vitaman 2017-10 [Digital]