[Kon-Kit] Kaya-nee Volleyball ni Idomu | Ane☆Volleyball Challenge (Bishoujo Kakumei KIWAME Road 2012-12 Vol. 4) [English] [Malone] [Digital]
Hahaoya Shikkaku Boshi ~Mikan to Souya~ | Mother's Failure Mother and Son -Mikan and Souya-
(COMIC1☆7) [ASIANBOY (Hasemi Ryo)] Backstage Hibiki Challenge (THE IDOLM@STER) [English]
UNKNOWN UNLOCK CHALLENGE | 크로스비츠 동인지
Futanari Milk Challenge
Futanari Milk Challenge 2 | 扶她榨乳挑战2
Tomb Failure
Challenge Completed!
[Sakura Garden (Shirosuzu)] Chaldea Outdoor Challenge Abby-chan to Issho 2 (Fate/Grand Order) [Digital]
DT Chinpo 100-pon Acme Challenge!! | 100 Virgin Cock Orgasm Challenge!!
(C77) [Kyuu (Shooya Akira)] Futtou Challenge (Sora no Manimani)
Akatsuki no Oyome-san Challenge | Akatsuki's Bride Challenge
(C90) [Akausagi (Fukuyama Naoto)] 100 challenge (Hundred)
(C94) [Bizensiki Roroppu (Bizen)] Oshiri Ecchi Challenge (Hatoba Tsugu)[Chinese][夏姬霸汉化组]
(C93) [MeltdoWN COmet (Yukiu Con)] Kanade Challenge Kouhen [Chinese] [Lolipoi汉化组]
Kasen-chan no Jasen Rouraku Challenge
[Kurokoshi You] Challenge Week (COMIC Megastore 2010-07) [English] {doujin-moe.us}
Backstage Hibiki Challenge
(C92) [Milk pudding (Jamcy)] Akane-chan Challenge! (VOICEROID)
Nametake Challenge!
Renzoku Kyousha Challenge
(SC40) [Delayder (Makinon TM)] Yousei-san no?! Himitsu no Bouken no Tobira Preview ver (Challenge First-Year-Student)
(C93) [Komatta Tomato (Yuuki Miyabi)] Akatsuki-chan Mayonaka no Otoile Challenge (Kantai Collection -KanColle-)
Fail of Witches
[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]
[Kidocch1] Cute Jolyne Lewd Challenge (Revenge Edition) + Extras (Jojo's Bizarre Adventure) [Cryptic_P]
Kanade Challenge Kouhen
Etorofu-gata Otoile Challenge
Seneki Shippai -Failure- | 전역실패
(COMIC1☆6) [Roshiman (Masa-nii)] Tenkuu no Hanayome ni Narenakatta Onna II | The Woman Who Failed to Become the Heavenly Bride II (Dragon Quest V) [English] [Chocolate]
[Molossan (Morochin-san)] Dokidoki Mesuiki! Challenge!! ~Cosplay Uriko Hen~ (Hacka Doll, Kantai Collection -Kancolle-) [Chinese] [瑞树汉化组] [Digital]
[Aotsu Umihito] Transformation failure (COMIC Megastore H 2013-05) [English]
[Akikusa Peperon] Hahaoya Shikkaku | A Failure of a Mother - Chapter 1-3 + Special [English] [joobuspaida]
Dairoku! Otoile Challenge
Nantaika Triad ♂ to Yukaina Nakamatachi Ochinchin Challenge Bon
HERE COMES A NEW CHALLENGER!!
(SPARK12) [Kaniparadise (Kanitaro)] mission failed (Persona 5)
[Torimogura] Osananajimi-chan Ikase Challenge
(SUPER11) [Astonish (Naitou Naito)] Kodomo Challenge (Various)
Futanari Milk Challenge 5 | 迫真水泳部・扶她的里技―第五章
Shippai Bunny - Failure of Bunny Suit
Kanoka Challenge_plot 2
Futanari Milk Challenge | 扶她榨乳挑战
[DEX+ (Nakadera Akira)] Kouryaku Shippai 2 | Failed Arrest 2 (Persona 5) [English] [Seyzer Koze] [Digital]
(Motto Warunodesu... Ouji) [Sakura Garden (Shirosuzu)] Aisha Challenge 4 (Sennen Sensou Aigis)
Rika no Oshiri Challenge
Shippai! Otori Sousa | Failure! Investigation Bait
[Tenchuugumi] Queen Sayoko's Challenge (Ah! My Goddess!) English
(C78) [Dennou Fuyu Mikan (Ueda Rieko)] Otona Challenge (Final Fantasy 4)
(C86) [Marked-two (Hideo)] Taihou Challenge! (Kantai Collection -KanColle-)
(C94) [Minamono (Minamo)] Ko-Gil Challenge (Fate/Grand Order)
Shizuku Challenge! Takumin Hitsuji-san no Chichishibori! RX
Welcome to Black Harem - Servant's Failure
(C86) [Contamination (eigetu)] Maki Nico Lesbian Challenge (Love Live!) [Incomplete]
Matai Toshi Fail 001
[ViperXTR] I Challenge You! (Kono Subarashii Sekai ni Syukufuku o!) [English]
[Yurikawa] Futago Challenge (Toshiue Kanojo Alternative) [English] [PSYN]
Yuusha no Sairokubon Challenge
(C70) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Futakoi Challenge (Futakoi Alternative)
[ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 3 [English] {Hennojin} [Digital]
Futanari Milk Challenge | 迫真水泳部・扶她的里技―第一章
Chaldea Outdoor Challenge Abby-chan to Issho 3
[Kikkaya (Uesugi Kyoushirou)] Haruka Challenge
Girls from a Prestigious School Challenged to an Escape Game
(Futaba Gakuensai 9) [1000AP (Various)] Kodomo de Challenge 5
(C92) [Slime Kikaku (Kuriyuzu Kuryuu)] Akatsuki no Oyome-san Challenge (Kantai Collection -KanColle-)
(SUPER11) [Astonish (Naitou Naito)] Kodomo Challenge (Various) [English] [CrystalMeph]
(C94) [Sakura Garden (Shirosuzu)] Chaldea Outdoor Challenge Abby-chan to Issho (Fate/Grand Order) [Chinese] [脸肿汉化组]
[Sakimori Dan] Sanae Challenge!! Ch. 1-2
UnknownUltimateChallenge
Seieki Tamekomi Challenge
[Mikeke] ろり陵育 お漏らし編
(Futaket 14) [Suichuu White (Calpi)] Kyokon Shoujo Nyoudou Challenge! [Chinese] [沒有漢化]
[laliberte] CHALLENGE [Chinese] [流木个人汉化]
[Yonemochi Akihiko] adult challenge 1
(C86) [Yamakawa Den'enfuukei (Yamada, Kawada)] HERE COMES A NEW CHALLENGER!! (High Score Girl) [English] [FEPO]
[Mist Night (Arniro)] Hell Of Swallowed [Operation fail Rei] [English]
Namaiki Kuchikukan Wakarase Challenge
Saimin Appli Challenge!!