(Angel Time 3) [Syunkan Saidaihusoku, Night FUCKERS (Pony R, Mitsugi)] Phantom Challenge! ~Futari no Domannaka Itadakimasu!~ (Kaitou Tenshi Twin Angel)
(COMITIA113) ["Tsu" ga Mittsu. (Tsuttsu)] Oshikko Training!
Oshikkollection Senkan Hen Jou
(Futaba Gakuensai 9) [1000AP (Various)] Kodomo de Challenge 5
[COOL BRAIN (Kitani Sai)] Oshikko Party (Amagami) [Digital]
[Ponsuke] Itazura Ichigo | Pranking Ichigo (Chibikko H) [English] [youjonooshikko]
[Story Circle (Seto Kouhei, Siina Yuuki)] TS-kko Otokoyu Challenge! | TS女孩男浴大作战! [Chinese] [瑞树汉化组]
[Himeshibori (YAMATO)] Sasami ga Oshikko o Gaman Shite Omorashi Suru Hon (Little Busters!) [Digital]
(C93) [Aozora Shoujo (Shirane Taito)] Rika no Oshiri Challenge (THE IDOLM@STER CINDERELLA GIRLS)
(C92) [Besshun-tei (Arisu Kazumi)] Friends no Oshikko Kansatsuki (Kemono Friends)
[Kou-chan Kaichou] NadeRin Dappun Oshikko Kanchou (Yuru Camp)
Michi de Deatta Shounen no Oshikko Choudai!
[Golden Tube (Ogu)] 3-sai kara no Oshikko Sensei VII | Oshikko Sensei From 3 Years Old - VII [English] [Digital]
U Challenge
(Reitaisai 11) [Usotsukiya (Oouso)] Koishi-chan Kutsushita Bon 2 "Full Color Oshikko" (Touhou Project)
[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]
Yuusha no Sairokubon Challenge
Chotto Oshikko Suru Nante Kiitenain dakedo!
Oshikkollection Kuchikukan Hen Go
(SC39) [Various (Various)] Hatena? Challenge! (Challenge First-Year-Student)
W Jeanne to Off-Paco Challenge
[Pikupikun] Nakade Oshikko [Digital]
(C90) ["Tsu" ga Mittsu. (Tsuttsu)] 2-2 Oshikko Soapland e Youkoso [Chinese] [无毒汉化组]
(Kouroumu 12) [Akai Hitomi to Aoi Tsuki (Various)] Sakuya-san no Oshikko no Ana Goudou ~Koko no Ana ga Mitai!~ (Touhou Project)
[Metacorapusu (Metacora)] JC Chinpo-beya Ikkagetsu Seikatsu Challenge!! (Kouhen) [Digital]
Oshikko Sekkan!
[Mikan Kougyou] Hahaoya ga Musuko no Oshikko o Nomihosu Manga [English]
(C92) [Slime Kikaku (Kuriyuzu Kuryuu)] Akatsuki no Oyome-san Challenge (Kantai Collection -KanColle-)
[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]
oshikko no tokoro de shitaino!
Kuroshio Challenge
[Yoriu Mushi] Kokuu Kara no Chousen - Challenger from the Sky
[Mosaic Book] Naka de Oshikko Shite | Peeing Inside Vagina [English]
(C89) [Golden Tube (Ogu)] Oshikko Sensei 6
Futanari Milk Challenge 3 | 扶她榨乳挑战 3
(C94) [Bizensiki Roroppu (Bizen)] Oshiri Ecchi Challenge (Hatoba Tsugu)[Chinese][夏姬霸汉化组·改]
[LUNATIC PROPHET (Arimura Yuu)] Oshikkollection Kuubo Hen Jou (Kantai Collection -KanColle-) [Digital]
[Golden Tube (Ogu)] Oshikko Sensei 5~. [Digital]
(C93) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 2 [English] {Hennojin}
[COOL BRAIN (Kitani Sai)] Oshikko Party 2 (Amagami) [Digital]
(C89) [Asatsuki Dou (Youta)] GirlPan Oshikko Matome Bon "Ooarai Joshi Seitokai" (Girls und Panzer)
[Youta] Koisuru Oshikko [Digital]
Futanari Milk Challenge 3 | 迫真水泳部・扶她的里技―第三章
[Golden Tube (Ogu)] 3-sai kara no Oshikko Sensei-II [Digital]
(C97) [Yusei Haguruma (Victanyas)] Namaiki Kuchikukan Wakarase Challenge | I'll Make You Understand Challenge (Azur Lane) [English] {Doujins.com}
(C89) [Bunbonian (Bunbon)] Kaettekita Oshikko Honoka-chan (Love Live!)
(C93) [MeltdoWN COmet (Yukiu Con)] Kanade Challenge Kouhen
(COMITIA108) ["Tsu" ga Mittsu. (Tsuttsu)] Oshikko Bokin Shimasenka? | Won't You Help Me with My Pee Fundraiser? [English] {5 a.m.}
[Sakura Garden (Shirosuzu)] Chaldea Outdoor Challenge Abby-chan to Issho 2 (Fate/Grand Order) [Digital]
[LUNATIC PROPHET (Arimura Yuu)] Oshikkollection Sensuikan hen (Kantai Collection -KanColle-) [Digital]
(Ore no Turn vs. 2019) [sigh. (Naruse)] Ore to Aitsu no S. M. T Challenge! (Yu-Gi-Oh! VRAINS)
Saimin Appli Challenge!!
Oshikkollection Kuchikukan Hen Nana
[Irojikake Matome Blog (Kurokawa Otogi)] Renzoku Kyousha Challenge (Paizuri Senmon Zasshi "Zettai Chichi Kyousha" Vol 1) [Textless]
[Golden Tube (Ogu)] Oshikko Sensei 6~. [Digital]
Hitori Challenge Rakugaki
(C90) [Akausagi (Fukuyama Naoto)] 100 challenge (Hundred) [Chinese] [清純突破漢化]
Futanari Milk Challenge 6
[Hara] Misaki-chan no Lotion Challenge
DokiDoki Mesuiki! Challenge!!
(C91) [Molossan (Morochin-san)] DokiDoki Mesuiki! Challenge!! (Various)
(Dramatic Change 3) [Ne. (Shiromitsu Daiya)] Challenge! Ochinchin Purupuruen ~3-nin nara Dekiru Mo~n~ (THE IDOLM@STER SideM)
(C94) [Fuwatoro★Marinepolis (Sumitomo)] Theater Challenge (THE IDOLM@STER MILLION LIVE!)
[LUNATIC PROPHET (Arimura Yuu)] Oshikkollection Kuchikukan Hen (Kantai Collection -KanColle-) [Digital]
Ane☆Volleyball Challenge
Challenge! Hentai Majo Rensei
[DIN] Seieki Tamekomi Challenge | Semen Storage Challenge [English]
(C94) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 4
(C94) [Moruda Ramenya (Moruda)] Okei-san no Nukinuki Dosukebe Challenge | Okay-san's Dirty Lewd Challenge (Girls und Panzer) [English] {Doujins.com}
Oshikkollection Kei junyōkan hen Ue
Sharo-chan!! Oshikko Nomasete!!
Space Detective Jade Dan Indecent Challenge
(C95) [Fuwatoro★Marinepolis (Sumitomo)] Theater Challenge (THE IDOLM@STER MILLION LIVE!)
One-shota Challenge
Futanari Milk Challenge 2 | 扶她榨乳挑战2
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
[Ponsuke] Shiawase no Koppepan | Bun Of Happiness (COMIC LO 2018-11) [English] [youjonooshikko]
(C86) [Contamination (eigetu)] Maki Nico Lesbian Challenge (Love Live!) [Incomplete]
(C91) [Hobukuro! (Bekotarou)] Himitsu no Hanazono 3 -Oshikko Collection-
Maki Challenge
[LUNATIC PROPHET (Arimura Yuu)] Oshikkollection Kai Ni Hen (Kantai Collection -KanColle-) [Digital]
Maki Nico Lez Challenge
(Futaket 14) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 3 | 扶她榨乳挑战 3 [Chinese] [黄记汉化组]
(C95) [Taikan Kyohougumi (Azusa Norihee)] Sakura-chan to Oshigoto Challenge - Ona-Hole Challenge with Sakura (Cardcaptor Sakura)
Twin Challenge ch. 1
Oshikko Hyakkei 1~3 Matome.
[Anthology] Oshikko ☆ Dechau!! [Digital]
(Kuchiku shite yaru! ~nano desu! 16senme) [LUNATIC PROPHET (Arimura Yuu)] Oshikkollection Kaiboukan Hen (Kantai Collection -KanColle-)
Captain Saimin Icha Love Challenge
Yousei-san no?! Himitsu no Bouken no Tobira Preview ver
Kaettekita Oshikko Honoka-chan
JC Chinpo-beya Ikkagetsu Seikatsu Challenge!
Oshikko Sensei 7~.
[Terujirou] Junior Dominating Senior Challenge! [RAW] [JAP]
[Golden Tube (Ogu)] 3-sai kara no Oshikko Sensei-V [Chinese] [沒有漢化] [Decensored] [Digital]
(Sennen Battle Phase 10) [ANNIELAURIE (Toyama Nanao)] Sex Challengers (Yu-Gi-Oh! ARC-V)
(C93) [Aozora Shoujo (Shirane Taito)] Rika no Oshiri Challenge (THE IDOLM@STER CINDERELLA GIRLS) [Chinese]
[Ulusan no Kyuukyuubako (Zayaku)] Sharo-chan!! Oshikko Nomasete!! (Gochuumon wa Usagi desu ka?)
[KAREHANEKO (Himitaka)] Extend Hiryuu Challenge (Strider Hiryuu) [Digital]
[Pirates Patrol (Otokawa Kazuki)] Unchi ya Oshikko de Kimochiyoku Naru Watashi-tachi [Digital]
(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]
Kanoka Challenge_plot 2
Oshikko Shitaku Nacchatta 【檸檬茶漢化組】
(C92) [Besshun-tei (Arisu Kazumi)] Friends no Oshikko Kansatsuki | FRIENDS的尿尿观察日记 (Kemono Friends) [Chinese] [檸檬茶漢化組]
Iorin no Oshikko Nomitai
(C88) [Circle Ohigetan (Ohigetan)] Ohigebon-64 Chinritsu!! Mucchiri Kyonyuu Gakuen C-Cup - AM 7:35 Sotogawa kara wa Toumei ni Natte Iru Joshi Toile. Seichouki no Onnanoko ga Oppai ya Hibu o Marudashi ni Shite Oshikko Suru no o Kanshou Shihoudai.
(C93) [Suzune Rai Chikashitsu (Suzune Rai)] Noja Loli Babaa Kitsune-sama Oshikko Gamanshi Nagara Teman
Aisha Challenge Renji ☆ 4
(C95) [88 Gou (Ooishi Chuuni)] Koukando 100 dakara Nagato no Oshikko Mite Kekkon Suru (Azur Lane) [English]
Hajimete no Inpio Challenge
Oshikko Shitaku Nacchatta
TS-kko Otokoyu Challenge! | TS女孩男浴大作战!
(C93) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 2
(C94) [Golden Tube (Ogu)] Oshikko Sensei 7~.
Yuusha no Sairoku Hon Challenge Omake Manga
[Mamemaru Shoten] Oshikko Gaman JK
(C90) ["Tsu" ga Mittsu. (Tsuttsu)] 2-2 Oshikko Soapland e Youkoso | Welcome to the 2-2 Pee Soapland [English] [ATF]
[Corundum] A Challenger Has Appeared Which Naturally Leads To A Duel | Chousensha ga Arawareta - Shizen na Nagare de Kettou (Fate Grand Order) [English] [FMLTranslations]
Toka 1 hour drawing challenge (ichizikann)
(C94) [Asatsuki Dou (Youta)] Hontou ni Atta Oshikko Enkou 2
Etorofu-gata Muchikko Kodomo Challenge
(C91) [Molossan (Morochin-san)] DokiDoki Mesuiki! Challenge!! (Various) [English] [TF translations]
(C89) [Asatsuki Dou (Youta)] GirlPan Oshikko Matome Bon "Ooarai Joshi Seitokai" (Girls und Panzer) [Chinese] [沒有漢化]