Yuusha no Sairoku Hon Challenge Omake Manga
[ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 3 [Digital]
(SUPER11) [Astonish (Naitou Naito)] Kodomo Challenge (Various) [English] [CrystalMeph]
[Jyoka] Igyou Kaikitan Mannequin | Wonderfully Grotesque Mystery - Mannequin (Monthly QooPA 2015-06) [English] [SaHa]
Monthly Vitaman 2017-12 [Digital]
[Fujisaka Kuuki] Koi Kano x Ai Kano Ch. 24 (Monthly Vitaman 2015-04) [Chinese] [樱翼汉化组]
W Jeanne to Off-Paco Challenge
Supervised Monthly Ejaculation
Time of the Month
[Higashino Mikan] Futomomo Sensation! (Monthly Vitaman 2015-10) [English] {NecroManCr}
ETD Challenge.
[Irojikake Matome Blog (Kurokawa Otogi)] Renzoku Kyousha Challenge (Paizuri Senmon Zasshi "Zettai Chichi Kyousha" Vol 1) [Textless]
Ero Trap Dungeon no Challenger
Male Swimsuit Challenge
(Utahime Teien 4) ["Tsu" ga Mittsu. (Tsuttsu)] Akane Challenge!? 2 (THE IDOLM@STER CINDERELLA GIRLS)
[Kuon Michiyoshi] HUNDRED GAME Ch. 9 (Monthly Vitaman 2015-09) [Chinese] [樱翼汉化组]
(C64) [kodomo challenge (Various)] Natsu no Kansatsu Nikki
Dairoku! Otoile Challenge 2
(C97) [Yuasa Rengou (Jean Louis)] Tanpan Kozou no Oppai Gym Challenge! (Pokémon Sword and Shield) [Chinese]
Dairoku! Otoile Challenge
Monthly QooPA 2015-05 [Digital]
Shimakaze-kun Challenge Shippai
(C65) [kodomo challenge (Various)] Shukudai ga Owaranai
[Kuon Michiyoshi] HUNDRED GAME Ch. 6 (Monthly Vitaman 2015-05) [Chinese] [樱翼汉化组]
A Challenger Has Appeared Which Naturally Leads To A Duel | Chousensha ga Arawareta - Shizen na Nagare de Kettou
Chaldea Outdoor Challenge Abby-chan to Issho
[Terujirou] Junior Dominating Senior Challenge! [RAW] [JAP]
Kodomo de Challenge 2
2-nen to 8-kagetsu no Kiseki | A Journey of 2 Years and 8 Months
Naisho no Enkou Challenge | 不可告人的援交挑战
[Yurikawa] Futago Challenge (Toshiue Kanojo Alternative) [English] [PSYN]
[Mizone] Hito no Ashi yori Hebi no Ashi Miyo | Watch Out Where You Put Your Own Snake (Monthly QooPA 2014-09) [English] [thetsuuyaku] [Digital]
Monthly Vitaman 2015-05 [Digital]
Misaki-chan no Lotion Challenge
(C82) [Marin (Suzusato Rinka, Mage)] Doujouyaburi no Kata wa Katteguchi e Omawari Kudasai | Challengers Please Present Yourself At The Back Door (Ranma 1/2) (English) [SaHa]
Monthly Vitaman 2007-06
(C86) [Yamakawa Den'enfuukei (Yamada, Kawada)] HERE COMES A NEW CHALLENGER!! (High Score Girl)
Tobira no Soto ni Ke tsuya no Ii Neko ga ita no de, Shitsukete Kaineko ni shite miru Challenge.
(Futaket 14) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 3 | 扶她榨乳挑战 3 [Chinese] [黄记汉化组]
(COMIC1☆7) [ASIANBOY (Hasemi Ryo)] Backstage Hibiki Challenge (THE IDOLM@STER) [English]
[Suhamaya (Satou Takumi)] Eroi Bunnyue ni Shasei Gaman Shoubu o Idomu. | Challenging the Lewd Bunny to a Cum Endurance Battle. (Fate/Grand Order) [English] [Iscreamkat] [Digital]
Utsuho Challenge!!
Yousei-san no?! Himitsu no Bouken no Tobira Preview ver
Monthly Vitaman 2014-10
[Sakimori Dan] Sanae Challenge!! Ch. 1-2
Kaye-nee Challenging Herself in Volleyball
(C86) [Marked-two (Hideo)] Taihou Challenge! (Kantai Collection -KanColle-) [Chinese] [CE家族社]
(C94) [Bizensiki Roroppu (Bizen)] Oshiri Ecchi Challenge (Hatoba Tsugu)[Chinese][夏姬霸汉化组]
Monthly Vitaman 2013-08
#SoniCha Ikuiku Challenge
Akatsuki-chan Mayonaka no Otoile Challenge
You Are Challenged by Kogal Takuha | La Sfida
Cute Jolyne Lewd Challenge + Extras
Renzoku Kyousha Challenge
Getsumatsu Daikanshasai | End of the Month Appreciation Event
Yuusha no Sairokubon Challenge
Kanoka Challenge_plot 2
Monthly MelomELO Jun.2014
(C95) [Andorogynous (Kiyose Kaoru)] Futanari Milk Challenge 5
[d.a.p (mougi)] UnknownUltimateChallenge (CROSS x BEATS) [Digital]
Gessha 20-man no Katei Kyoushi | Working as a Home Tutor for 200 Thousand Yen per Month