(SC32) [AXZ (Various)] UNDER RED E2 (Kiddy Grade)
[Takeda Hiromitsu] Zettai! Zettai!! Ojou-sama (COMIC Megastore 2009-09) [English] [Strange Grey Cat]
Kaye-nee Challenging Herself in Volleyball
(Warabe Jitsuno Koukou Bunka Matsuri Duel Carnival) [Michu★Honey (Hikari.)] Kattobingu wa Challenge tte Kotoda ze! (Yu-Gi-Oh! Zexal)
Backstage Hibiki Challenge
(CR33) [Kohakutei (Sakai Hamachi)] Tipsy Rouge (Kiddy Grade)
[Tenchuugumi] Queen Sayoko's Challenge (Ah! My Goddess!) English
(Kotonoha's Festa 2) [Milk Pudding (Jamcy)] Akane-chan Challenge! 2.5-kaime (VOICEROID)
SECRET LOVERS ~MINASHIKA WORKS OFFICIAL EDITION~
(CR35) [AXZ (Various)] UNDER BLUE POWER (Kiddy Grade)
[Noise] Houmonsaki no Oko-sama | Kiddy Visitor (Oppai, Futomomo, Sokoni Short Pants) [English] [Doki Fansubs] [Digital]
(C93) [Aozora Shoujo (Shirane Taito)] Rika no Oshiri Challenge (THE IDOLM@STER CINDERELLA GIRLS) [Chinese]
(C86) [Marked-two (Hideo)] Taihou Challenge! (Kantai Collection -KanColle-)
(C92) [Slime Kikaku (Kuriyuzu Kuryuu)] Akatsuki no Oyome-san Challenge (Kantai Collection -KanColle-) [Chinese] [脸肿汉化组]
(C78) [Nounai Kanojo (Kishiri Toworu)] Remilia kara no Chousenjou | Remilia's Challenge (Touhou Project) [English] [UMAD]
Toka 1 hour drawing challenge (ichizikann)
Yuusha no Sairoku Hon Challenge
[dotsuco] Nametake Challenge!
Kanoka Challenge_plot 2
Eroi Bunnyue ni Shasei Gaman Shoubu o Idomu. | Challenging the Lewd Bunny to a Cum Endurance Battle.
(C93) [Unagiyasan (Hanamiya Natsuka)] Otona Challenge!!
Cute Jolyne Lewd Challenge + Extras
(C77) [Kyuu (Shooya Akira)] Futtou Challenge (Sora no Manimani)
[d.a.p (mougi)] Unknown Unlock Challenge (CROSS x BEATS) [Chinese] [这很恶堕汉化组] [Digital]
(C66) [AXZ (Shinobu Akira)] UNDER PEACH πr2 (Kiddy Grade)
[Chuushin Kuranosuke] Like A Kidding!
(C95) [Yamitsuki Honpo (Wise Speak)] JK Tamamo no Shuugaku Ryokou Oppai Challenge (Fate/Extra)
(SC41) [Studio Kimigabuchi (Kimimaru)] Watashitachi wa Kami da (Various)
Okusama Challenge - Challenge of Wife
Akatsuki no Oyome-san Challenge | Akatsuki's Bride Challenge
Dairoku! Otoile Challenge 2
(C90) [Akausagi (Fukuyama Naoto)] 100 challenge (Hundred) [English] [Tigoris Translates]
(C95) [Taikan Kyohougumi (Azusa Norihee)] Sakura-chan to Oshigoto Challenge - Ona-Hole Challenge with Sakura (Cardcaptor Sakura)
Sex Challengers
[Anthology] Comic Alice Club Vol. 4
(CR33) [2Stroke (YTS Takana)] 2STROKE RZ (Kiddy Grade)
Akane Challenge!? 2
(C94) [Bizensiki Roroppu (Bizen)] Oshiri Ecchi Challenge (Hatoba Tsugu)
Dairoku! Otoile Challenge2
(C86) [Contamination (eigetu)] Maki Nico Lesbian Challenge (Love Live!) [Incomplete]
[ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 3 [English] {Hennojin} [Digital]
[Neko to Hato (Hatoya)] Que sera sera (Kiddy Grade) [English]
(C92) [MeltdoWN COmet (Yukiu Con)] Kanade Challenge Zenpen
(C85) [Wasuraruru Tegami (Binsen)] Elf Shimai no Chousen | The Elf Sisters' Challenge [English] [Mistvern]
Imasara Shampoo Bottle Challenge o Suru Suieibu Coach no Manga | 现在才来挑战洗发水罐子的游泳部教练的漫画
(SUPER11) [Astonish (Naitou Naito)] Kodomo Challenge (Various)
(C86) [Contamination (eigetu)] Maki Nico Lez Challenge (Love Live!) [Incomplete]
Saimin Tengoku Challenge 05
[Rippadou (Various) ] Eranyuu Tengoku Busty Heaven 2 (Various) [Digital]
(C94) [Moruda Ramenya (Moruda)] Okei-san no Nukinuki Dosukebe Challenge | Okay-san's Dirty Lewd Challenge (Girls und Panzer) [English] {Doujins.com}
A Challenger Has Appeared Which Naturally Leads To A Duel | Chousensha ga Arawareta - Shizen na Nagare de Kettou
(C86) [Marked-two (Hideo)] Taihou Challenge! (Kantai Collection -KanColle-) [Chinese] [CE家族社]
(C70) [Solex (Minamita Kana, Sanomako, Toku)] Rurimix SP5 (Various)
(CR33) [Shioya (Shioya Maico)] SHIO! Vol.17 (Kiddy Grade)
(C63) [Hotel California (Natsuno Suika)] Red/Rouge (Kiddy Grade)
Seieki Tamekomi Challenge
[Kyuu (Shooya Akira)] Futtou Challenge 2 rev.2 (Sora no Manimani)
Futanari Milk Challenge | 扶她榨乳挑战
(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]
(C66) [Mutsuya (Mutsu Nagare)] Sugoi Ikkoi 15 (Kiddy Grade)
(C95) [Andorogynous (Kiyose Kaoru)] Futanari Milk Challenge 5
[Minion] Chitchana Sankaku Kankei | Kiddy Triangle [English]
(C94) [Moruda Ramenya (Moruda)] Okei-san no Nukinuki Dosukebe Challenge (Girls und Panzer)
Futanari Milk Challenge 5 | 扶她榨乳挑战 5
Tanpan Kozou no Oppai Gym Challenge!
(C65) [Hotel California (Natsuno Suika)] SWEET ANGEL 7 - Dual/Doll (Kiddy Grade)
Rika no Oshiri Challenge
(Kono Koe Todoke, Tsuki made mo Yon) [Milk Pudding (Jamcy)] Akane-chan Challenge! 3-kaime (VOICEROID)
(C94) [Bizensiki Roroppu (Bizen)] Oshiri Ecchi Challenge (Hatoba Tsugu)[Chinese][夏姬霸汉化组]
Futanari Milk Challenge 2 | 扶她榨乳挑战2
(C94) [Moruda Ramenya (Moruda)] Okay-san no Nukinuki Dosukebe Challenge (Girls und Panzer)
Yui-chan SEX Challenge!!
(C92) [Slime Kikaku (Kuriyuzu Kuryuu)] Akatsuki no Oyome-san Challenge | Akatsuki's Bride Challenge (Kantai Collection -KanColle-) [English] {Doujins.com}
(C64) [AXZ (Various)] UNDER BLUE 08 (Kiddy Grade)
Saimin Appli Challenge!!
Yuusha no Sairokubon Challenge
Chaldea Outdoor Challenge Abby-chan to Issho 2
(SC39) [Various (Various)] Hatena? Challenge! (Challenge First-Year-Student)
(CR33) [IRODORI (Maruto!, Shirotsumekusa, SOYOSOYO)] HAKANAI (Kiddy Grade) +Omake [English]
Pancakes Challenge
#SoniCha Ikuiku Challenge
Otou-san Challenge
CHALLENGE
[Terujirou] Junior Dominating Senior Challenge!
Akari Challenge
[Kurokoshi You] Challenge Week (COMIC Megastore 2010-07) [English] {doujin-moe.us}
Challenge Days
[sky & si-o] 罪世 - バーサーカーチャレンジ | Tsumi Yo - Berserker Challenge [EN]
[Satuyo] Pool de Challenge! Boyish | Challenge at the Pool! Boyish (Peaceful Ecchi!) [English] [Doki Fansubs+Yosh]
(C93) [MeltdoWN COmet (Yukiu Con)] Kanade Challenge Kouhen
(SC41) [AXZ (Various)] Angel's stroke 18 Black Star White Moon (Kiddy Grade)
[Mizu] Kids Challenge [English]
[d.a.p (mougi)] UnknownUltimateChallenge (CROSS x BEATS) [Digital] [Chinese] [这很恶堕汉化组]
[Senbon Knock Zadankai (Erosong)] Mr.Kiddoman Wosagase REPORT 2
(CR33) [Rabbit Company (Kotogi Raura)] STALE WORLD 20-0.5 Secret Time' (Kiddy Grade)
I Challenge You!
Ishtar no Houkei Chinpo Mukimuki Challenge Jipponshoubu+Gojitudan
Kasen-chan no Jasen Rouraku Challenge
Tobira no Soto ni Ke tsuya no Ii Neko ga ita no de, Shitsukete Kaineko ni shite miru Challenge.
Shake/Hands
[Sakura Garden (Shirosuzu)] Chaldea Outdoor Challenge Abby-chan to Issho | Chaldea Outdoor Challenge with Abby-chan (Fate/Grand Order) [English] [The Blavatsky Project] [Digital]
Teisouring Challenge
Utsuho Challenge!!
[Senri no Dou] Kichi Grade (Kiddy Grade) [Digital]
[zen9] Okusama Challenge - Challenge of Wife
(Rainbow Flavor 18) [Risoukyou (Rikiddo, Nishi Tagame)] Yami Cure Dream Stars ~Zengi no Tomodachi~ (Fresh PreCure!)
Maki Nico Lez Challenge
(SC19) [Shiitake (Mugi)] BYUNN BYUNN 3 (Kiddy Grade)
Flan-chan no Saimin Nikubenki Challenge
Saimin Tengoku Challenge 04
Namaiki Kuchikukan Wakarase Challenge | I'll Make You Understand Challenge
(Utahime Teien 4) ["Tsu" ga Mittsu. (Tsuttsu)] Akane Challenge!? 2 (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [无毒汉化组]
(C94) [Minamono (Minamo)] Ko-Gil Challenge (Fate/Grand Order) [Chinese] [theoldestcat汉化]
[Nekomata Naomi] Here Comes a New Challenger! (COMIC Kairakuten Beast 2007-04) [English] [Clearly Guilty Translations]
(C81) [Azuki Monaka (Takenouchi Suama)] Magical Saimin Challenge (Magical Halloween)
(C63) [MACV-SOG (MAC-V)] PORNOGRAPHY 12 (Gravion, Kiddy Grade)
[Abubu] Iemoto Challenge Series - Jinrui Hasshou no Chi de Mikai no Buzoku to Bunka Kouryuu Isshuukan (Girls und Panzer)
[Ponpharse] Ponpharse - Tokubetsu Hen | Ponfaz's Special [English] [desudesu]
(CR33) [Tsurikichi Doumei (Umedama Nabu)] Nise - Umedamanga Shuu (Various)
(C93) [Milk pudding (Jamcy)] Akane-chan Challenge! 2-kaime (VOICEROID)
Aisha Challenge 4
Venus
[Yoriu Mushi] Kokuu Kara no Chousen - Challenger from the Sky
(C93) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 2
(C92) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge [English] {Hennojin}
Chaldea Outdoor Challenge Abby-chan to Issho 3
UNKNOWN UNLOCK CHALLENGE | 크로스비츠 동인지
Iemoto Challenge Series - Jinrui Hasshou no Chi de Mikai no Buzoku to Bunka Kouryuu Isshuukan
[kogasaki yuina] JK Mamamo No Shuugakuryokou Oppai Challenge | JK玉藻的畢業旅行ㄋㄟㄋㄟ大冒險 [Chinese] (Fate/Extra)[三色的大猩猩翻譯同盟]
[Koyanagi Royal] Sei Penalty Gakuen Goku | St.Penalty Academy [English] [SaHa]
Kanade Challenge Kouhen