Monthly 'Aikawa' The Chief Editor Chp. 3
At first glance, it looks like a man swimsuit challenge + Textless + Bonus
[Molossan (Morochin-san)] Dokidoki Mesuiki! Challenge!! ~Cosplay Uriko Hen~ (Hacka Doll, Kantai Collection -Kancolle-) [Chinese] [瑞树汉化组] [Digital]
(SUPER24) [PureSlider (Matsuo)] MONTHLY THE IWATOVISION (Free!) [Chinese] [绅士仓库汉化]
[d.a.p (mougi)] UnknownUltimateChallenge (CROSS x BEATS) [Digital]
Monthly Megastore 2018-03
Monthly Vitaman 2016-06
Monthly QooPA 2013-10
Saimin Tengoku Challenge 05
(C64) [kodomo challenge (Various)] Natsu no Kansatsu Nikki
[Jyoka] Igyou Kaikitan Hasshaku-sama (Monthly QooPA 2014-12) [Digital]
Monthly Vitaman 2015-01
[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]
Monthly Vitaman 2013-05
(C86) [Contamination (eigetu)] Maki Nico Lesbian Challenge (Love Live!) [Chinese] [光年汉化组汉化]
[Karma Tatsuro] Shiawase no Shoujo (Monthly Vitaman 2014-01) [English] [Facedesk]
(C93) [Aozora Shoujo (Shirane Taito)] Rika no Oshiri Challenge (THE IDOLM@STER CINDERELLA GIRLS)
(C94) [Moruda Ramenya (Moruda)] Okei-san no Nukinuki Dosukebe Challenge | Okay-san's Dirty Lewd Challenge (Girls und Panzer) [English] {Doujins.com}
Nantaika Triad ♂ to Yukaina Nakamatachi Ochinchin Challenge Bon
[Karma Tatsurou] Mini Tsuma (Monthly Vitaman 2012-03) [English] [Digital]
(C94) [Sakura Garden (Shirosuzu)] Chaldea Outdoor Challenge Abby-chan to Issho (Fate/Grand Order) [Chinese] [脸肿汉化组]
[Nekomata Naomi] Here Comes a New Challenger! (COMIC Kairakuten Beast 2007-04) [English] [Clearly Guilty Translations]
Yuusha no Sairoku Hon Challenge
[Sen] Makabe no Oshiri Challenge (THE IDOLM@STER MILLION LIVE!)
Futanari Milk Challenge 6
Futanari Milk Challenge 2
Mesu Ana Muhou Chitai Muyou no Chitsu-nai-dashi Choueki - Hoozuki Miyoko 5 years 6 months
Kyogo ~Kunoichi Water Torture Challenge~
[Taikan Kyohougumi (Azusa Norihee)] Sakura-chan to Oshigoto Challenge - Ona-Hole Challenge with Sakura (Cardcaptor Sakura) [English] [Digital]
Seieki Tamekomi Challenge
Monthly Vitaman 2018-04 [Digital]
Makabe no Challenge
Monthly KaraOso Omnibus
Jisatsu Challenge | 自殺挑戰
Monthly Vitaman 2007-02
Monthly Vitaman 2016-07
[Kuon Michiyoshi] HUNDRED GAME Ch. 2 (Monthly Vitaman 2014-11) [English] [allenallenallen333]
#SoniCha Ikuiku Challenge
Pancakes Challenge
Monthly Vitaman 2014-10
[Jyoka] Igyou Kaikitan Mannequin | Wonderfully Grotesque Mystery - Mannequin (Monthly QooPA 2015-06) [English] [SaHa]
[Ponkotsu Works] Blind Ecchi! SideA (Monthly Vitaman 2014-09) [Chinese] {G&魔皮卡的女子力研究}
Natsukoi Challenge | Summer Love Challenge
[Takitomo Tsuguo] Lotion!? (Monthly Vitaman 2013-08) [Chinese] [最愛路易絲澪漢化組]
(Sennen Battle Phase 11) [ANNIELAURIE (Toyama Nanao)] SEX CHALLENGERS 02 (Yu-Gi-Oh! ARC-V)
Kids Challenge
Kouiu Koyuki mo Dou desu ka?!
[Hibon (Itami)] Yuu-kun CHALLENGE!! Kobe Hen [Digital]
(C78) [Nounai Kanojo (Kishiri Toworu)] Remilia kara no Chousenjou | Remilia's Challenge (Touhou Project) [English] [UMAD]
Chie-chan Gouhou Challenge!
[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Oneesan no Fudeoroshi Ver. 3 [Chinese] [cqxl自己汉化] [Digital]
[Kusatsu Terunyo] Homestay Ikkagetsume | 1st Month of Homestay (COMIC Purumelo 2008-11) [English] [desudesu]
Monthly Vitaman 2009-11
Asuka 6 months
Etorofu-gata Otoile Challenge
[Satuyo] Pool de Challenge! Boyish | Challenge at the Pool! Boyish (Peaceful Ecchi!) [English] [Doki Fansubs+Yosh]
[ViperXTR] I Challenge You! (Kono Subarashii Sekai ni Syukufuku o!) [English]
TS-kko Otokoyu Challenge! | TS女孩男浴大作战!
[Mariana Kaikou Kikaku (Mikami Hokuto)] Shimakaze-kun Challenge Shite Itara, Mogami-kun ni Encount Shita Ken. (Kantai Collection -KanColle-) [Digital]
[Kuon Michiyoshi] HUNDRED GAME Ch. 6 (Monthly Vitaman 2015-05) [Chinese] [樱翼汉化组]
Aisha Challenge 4
[Story Circle (Seto Kouhei, Siina Yuuki)] TS-kko Otokoyu Challenge! | TS女孩男浴大作战! [Chinese] [瑞树汉化组]
(C86) [Contamination (eigetu)] Maki Nico Lesbian Challenge (Love Live!) [Incomplete]
[Yurikawa] Futago Challenge | Twin Challenge (Toshiue Kanojo Alternative) [English] [PSYN+DMD]