Saiyan Monthly n°25, August 1993, 2nd anniversary
Monthly MelomELO Jun.2014
Sanae Challenge!!
Monthly Vitaman 2013-11
(C70) [Okinawa Taieki Gunjinkai (Yasunaga Kouichirou)] Futakoi Challenge (Futakoi Alternative)
[deadflow] Ui (Kukagetsu) | Ui (Eight months pregnant) (Blue Aka-chan IN-bu) (Blue Archive) [Digital]
(C86) [Marked-two (Hideo)] Taihou Challenge! (Kantai Collection -KanColle-)
Monthly Vitaman 2015-11 [Digital]
Mont Barbara no Inran Shimai | Laissez Fayre Horny Sisters
Cute Jolyne Lewd Challenge + Extras
Futanari Milk Challenge 4 | 扶她榨乳挑战 4
(C94) [Moruda Ramenya (Moruda)] Okei-san no Nukinuki Dosukebe Challenge | Okay-san's Dirty Lewd Challenge (Girls und Panzer) [English] {Doujins.com}
(Futaket 14) [Suichuu White (Calpi)] Kyokon Shoujo Nyoudou Challenge! [Chinese] [沒有漢化]
(Warabe Jitsuno Koukou Bunka Matsuri Duel Carnival) [Michu★Honey (Hikari.)] Kattobingu wa Challenge tte Kotoda ze! (Yu-Gi-Oh! Zexal)
Saimin Appli Challenge!!
Namaiki Kuchikukan Wakarase Challenge
Monthly Vitaman 2017-05
(C78) [Dennou Fuyu Mikan (Ueda Rieko)] Otona Challenge (Final Fantasy 4)
(C91) [Molossan (Morochin-san)] DokiDoki Mesuiki! Challenge!! (Various) [Chinese] [不協和音漢化]
JC Chinpo-beya Ikkagetsu Seikatsu Challenge!!
Yuusha no Sairokubon Challenge
Iemoto Challenge Series - Jinrui Hasshou no Chi de Mikai no Buzoku to Bunka Kouryuu Isshuukan
[Gojarun no Ozashiki (Gojarun)] Nantaika Triad to Yukai na Nakama-tachi Ochinchin Challenge Hon (THE IDOLM@STER CINDERELLA GIRLS) [Digital]
[Story Circle (Seto Kouhei, Siina Yuuki)] TS-kko Otokoyu Challenge! | TS女孩男浴大作战! [Chinese] [瑞树汉化组]
Monthly Vitaman 2015-09
[dotsuco] Nametake Challenge!
[MelonBooks] Monthly MelomELO Mar.2014
TS-kko Otokoyu Challenge! | TS女孩男浴大作战!
(C92) [MeltdoWN COmet (Yukiu Con)] Kanade Challenge Zenpen
Futanari Milk Challenge 3
[Mizu] Ana no Toriko (Kids Challenge) [Chinese] [Befreiungsfuehrer第四次个人汉化]
Kagi Catch Challenge
(C86) [Contamination (eigetu)] Maki Nico Lesbian Challenge (Love Live!) [Incomplete]
[MelonBooks] Monthly MelomELO Jun.2014
[Fukumaaya] Uiuishii Imouto | Naive Little Sister (Monthly QooPA 2014-08) [English] [Crystalium]
[The Monthly Istanbul (Ahugan Sugita)] Shotagari Witch [Digital]
[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Oneesan no Fudeoroshi Ver. 5 [Chinese] [cqxl自己汉化]
Monthly Vitaman 2014-04
Monthly Vitaman 2015-08
Monthly Vitaman 2013-06
[RoriE-Do] VS Kishi no Honoo no Challenger (VS Knight Lamune & 40 Fire)
At first glance, it looks like a man swimsuit challenge + Textless + Bonus
[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]
[Bonnouji Yura (Bonnouji Yura)] A story about a (Ex) Great Sword Master Adventurer who challenges a dungeon where tentacles lurk [English] [unknown scanlations] [Digital]
Monthly Vitaman 2008-11
(C92) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge [English] {Hennojin}
[Hara] Misaki-chan no Lotion Challenge
[MelonBooks] Monthly MelomELO Nov.11,2012
Dosukebe Muramatsuri 1 - Jigoku no Cli Zeme Mesugaki Taikyuu Renzoku Acme Challenge Hen
Kodomo de Challenge 3
[Irojikake Matome Blog (Kurokawa Otogi)] Renzoku Kyousha Challenge (Paizuri Senmon Zasshi "Zettai Chichi Kyousha" Vol 1) [Textless]
[Sakimori Dan] Sanae Challenge!! Ch. 1-2
[AXZ (Katatuka Kouji)] Yui-chan SEX Challenge!! (Yuyushiki) [Digital]
Monthly Vitaman 2006-12
W Jeanne to Off-Paco Challenge
Dairoku! Otoile Challenge2
[Mizone] Onigashima no Kyokon (Monthly QooPA 2014-11) [Digital]
[d.a.p (mougi)] UnknownUltimateChallenge (CROSS x BEATS) [Digital]
Monthly Vitaman 2016-04
(Motto Warunodesu... Ouji) [Sakura Garden (Shirosuzu)] Aisha Challenge Renji ☆ 4 | 爱莎的☆4挑战 (Sennen Sensou Aigis) [Chinese] [DarkZ]
Pancakes Challenge
(C93) [Unagiyasan (Hanamiya Natsuka)] Otona Challenge!! [Chinese] [脸肿汉化组]
[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Oneesan no Fudeoroshi [Chinese] [cqxl自己汉化] [Digital]
adult challenge 4
[Comeon Showme] Unhappy Now Year (Monthly Vitaman 2013-02) [English] [Krozam]
Ane☆Volleyball Challenge
Monthly Vitaman 2009-02 [Incomplete]
(C93) [Unagiyasan (Hanamiya Natsuka)] Otona Challenge!!
Renzoku Kyousha Challenge
(C101) [chori (Chorimokki)] Nanjamo to Ura Gym Challenge!! | 奇树的秘密道馆挑战!! (Pokémon Scarlet and Violet) [Chinese] [我今天爆炸了个人汉化]
[Karma Tatsurou] Mini Tsuma (Monthly Vitaman 2012-03) [Digital]
[Karma Tatsurou] Reikan | Ghost Sense (Monthly Vitaman 2013-05) [English] {UsagiTrans}
Monthly Vitaman 2014-02
[Metacorapusu (Metacora)] JC Chinpo-beya Ikkagetsu Seikatsu Challenge! (Zenpen) [Digital]
Makabe no Oshiri Challenge
Monthly QooPA 2015-05
Ishtar no Houkei Chinpo Mukimuki Challenge Jipponshoubu+Gojitudan
[d.a.p (mougi)] UnknownUltimateChallenge (CROSS x BEATS) [Digital] [Chinese] [这很恶堕汉化组]
Supervised Monthly Ejaculation
[The Monthly Istanbul (Ahugan Sugita)] Kasshoku Oneesan no Fudeoroshi [Digital]
Kurakura Kyouka Gekkan | A Month Of Increasing Pleasure
Reiwa Shasei Challenge
Mesu Ana Muhou Chitai Muyou no Chitsu-nai-dashi Choueki - Hoozuki Miyoko 5 years 6 months
Kagi Kyacchi Charenji | Key Catch Challenge
A Challenger Has Appeared Which Naturally Leads To A Duel | Chousensha ga Arawareta - Shizen na Nagare de Kettou
First Love Ten months later complete
[Terujirou] Junior Dominating Senior Challenge! [RAW] [JAP]
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
(C95) [Fuwatoro★Marinepolis (Sumitomo)] Theater Challenge (THE IDOLM@STER MILLION LIVE!)
TS-kko Otokoyu Challenge!