[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}
adult challenge 2
Hina Iinchou Amae Heta Kokufuku Challenge | 日奈委員長的撒嬌困難克服挑戰
Hahaoya Shikkaku Boshi ~Mikan to Souya~ | Mother's Failure Mother and Son -Mikan and Souya-
(C85) [Viento Campanilla (Suzuhane Suzu)] Welcome to Black Harem ~Gebokuka Shippai~ | Welcome to Black Harem - Servant's Failure (To Love-Ru Darkness) [English] {doujin-moe.us}
#SoniCha Ikuiku Challenge Short Rough Stories
Eiketsu Ninja Gaiden ~Haiboku Hen~ | The Champion's Ninja Side Story ~Failure~
(C93) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 2
[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]
(Koyama Shigeru) Witch's Failure ~Gyakushuu no Harama-sex~ | Witch's Failure ~Counterattack Pregnan-sex~ (2D Comic Magazine Mesugaki Haramase Seisai! Wakarase Chakushou de Omedeta Mama Debut Vol. 1) [English] [Rainsong]
Maki Nico Lez Challenge
Twin Challenge ch. 1
adult challenge 4
Hana Challenge!
i-ll-make-you-understand-challenge
(iDOL SURVIVAL2) ["Tsu" ga Mittsu. (Tsuttsu)] Akane Challenge!? (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [无毒汉化组]
Dairoku! Otoile Challenge2
Sennou Fuchou no Obenjo Challenge Isshuukan!
[Pyonchi Koubou (Pyonchi)] Dosukebe Muramatsuri 1 - Jigoku no Cli Zeme Mesugaki Taikyuu Renzoku Acme Challenge Hen
The Price of Failure
Akane Challenge!? 2
(C93) [Aozora Shoujo (Shirane Taito)] Rika no Oshiri Challenge (THE IDOLM@STER CINDERELLA GIRLS)
Kono Subarashii Damegami to Mahoutsukai to Seikishi to!! | God's Blessing On This Wonderful Failed Goddess, Sorceress, And Holy Knight!!
Iemoto Challenge Series - Jinrui Hasshou no Chi de Mikai no Buzoku to Bunka Kouryuu Isshuukan
Mission failed 16
[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]
[Hitsumabushi] Double Up Challenge! [English]
The Woman Who Failed to Become the Heavenly Bride II
(C94) [Sakura Garden (Shirosuzu)] Chaldea Outdoor Challenge Abby-chan to Issho (Fate/Grand Order) [Chinese] [脸肿汉化组]
(C94) [Moruda Ramenya (Moruda)] Okay-san no Nukinuki Dosukebe Challenge (Girls und Panzer)
[Taikan Kyohougumi (Azusa Norihee)] Sakura-chan to Oshigoto Challenge - Ona-Hole Challenge with Sakura (Cardcaptor Sakura) [English] [Digital]
Transformation Failure
Kodomo Challenge
[HGT Lab (Tsusauto)] Kyoudai Shikkaku | Failing as Brother and Sister [English] {Doujins.com}
Imasara Shampoo Bottle Challenge o Suru Suieibu Coach no Manga
A story where Ace-kun fails
[Molossan (Morochin-san)] Dokidoki Mesuiki! Challenge!! ~Cosplay Uriko Hen~ (Hacka Doll, Kantai Collection -Kancolle-) [Chinese] [瑞树汉化组] [Digital]
Rika no Oshiri Challenge
[Torimogura] Osananajimi-chan Ikase Challenge
Failure Princess
Dairoku! Otoile Challenge
(C86) [Contamination (eigetu)] Maki Nico Lez Challenge (Love Live!) [Incomplete]
Operation Fail [Japanese] - Arniro111
(C81) [Azuki Monaka (Takenouchi Suama)] Magical Saimin Challenge (Magical Halloween)
[Kikkaya (Uesugi Kyoushirou)] Haruka Challenge [English] [Scansforhumanity]
[Takeya (Taketora Suzume)] Kuroshio Challenge (Kantai Collection -KanColle-) [Digital]
Tanpan Kozou no Oppai Gym Challenge! | A Boy In Short's Big Breasted Gym Challenge!
[Milk Pudding (Jamcy)] Akane-chan Challenge! 4-kaime (VOICEROID) [Digital]
Matsuno Osomatsu no Sex Challenge
Yuusha no Sairokubon Challenge
(C90) [Akausagi (Fukuyama Naoto)] 100 challenge (Hundred) [Chinese] [清純突破漢化]
(C94) [Bizensiki Roroppu (Bizen)] Oshiri Ecchi Challenge (Hatoba Tsugu)[Chinese][夏姬霸汉化组·改]
Challenge Hanayome Ichinensei
(Shoujo Senryaku Saizensen 02) [Tagamekan (Nishi Tagame)] Seneki Shippai -Failure- (Girls' Frontline) [Chinese] [M系資源聚合漢化組]
(Motto Warunodesu... Ouji) [Sakura Garden (Shirosuzu)] Aisha Challenge 4 (Sennen Sensou Aigis)
(Nikudarake!!!!!! Gachinko Butoukai in chaos) [Kasuga Kikaku (Terujirou)] Gekokujou ni Chousen! | Junior Dominating Senior Challenge! [English]
[Tenchuugumi] Queen Sayoko's Challenge (Ah! My Goddess!) English
Manatsu no Drink Challenge
Jisatsu Challenge | 自殺挑戰
Honoka Challenge! 2
(C63) [Kodomo Challenge (various)] Mainiti-ga-Kodomo-no-hi
Takagi Airi no 10-pun Challenge | Takagi Airi's 10 Minute Challenge
Rakugaki Fail 3 1/2
One-shota Challenge
(C78) [Nounai Kanojo (Kishiri Toworu)] Remilia kara no Chousenjou | Remilia's Challenge (Touhou Project) [English] [UMAD]
Naisho no Enkou Challenge | Secret Sugar Daddy Challenge
TS-kko Otokoyu Challenge! | TS女孩男浴大作战!
Girls from a Prestigious School Challenged to an Escape Game
(C94) [Moruda Ramenya (Moruda)] Okei-san no Nukinuki Dosukebe Challenge | Okay-san's Dirty Lewd Challenge (Girls und Panzer) [English] {Doujins.com}
[ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 3 [Digital]
JC Chinpo-beya Ikkagetsu Seikatsu Challenge!
Onii-chan swallowing challenge!
(Dramatic Change 3) [Ne. (Shiromitsu Daiya)] Challenge! Ochinchin Purupuruen ~3-nin nara Dekiru Mo~n~ (THE IDOLM@STER SideM)
Fail Mother 2: Drawn in Lust
(C94) [Minamono (Minamo)] Ko-Gil Challenge (Fate/Grand Order)