Challenger Quant Engineer

Kagi Catch Challenge 2

Happy Aphrodisiac Challenge

[Rotary Engine (Kannazuki Motofumi)] Bloody Moon Overdrive (Akatsuki Yuni) [Digital]

Yuunou Engineer ni wa Ura no Kao ga Aru Watashi o Kaihatsu suru Dekiai Step | 能干程序员隐藏的一面 把我“开发”的溺爱步骤 1-9

[Rotary Engine (Kannazuki Motofumi)] Tatsu no Otoshigo (Ryuuou no Oshigoto!) [Chinese] [oo君x靴下联合汉化][Digital]

[Metacorapusu (Metacora)] JC Chinpo-beya Ikkagetsu Seikatsu Challenge! (Zenpen) [Digital]

Okei-san no Nukinuki Dosukebe Challenge

Yuunou Engineer ni wa Ura no Kao ga Aru Watashi o Kaihatsu suru Dekiai Step | 能干程序员隐藏的一面 把我“开发”的溺爱步骤 1-15

(C76) [Rotary Engine (Kannazuki Motofumi)] Nodocchi Ryouri Show | Nodocchi Cooking Show (Saki) [English] {doujin-moe.us}

(C95) [Yamitsuki Honpo (Wise Speak)] JK Tamamo no Shuugaku Ryokou Oppai Challenge (Fate/Extra) [English] [Gawainized]

(C99) [Rotary Engine (Kannazuki Motofumi)] Pako Oshi! (Hololive) [English] [Xzosk]

(C92) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge [English] {Hennojin}

(Kotonoha's Festa 2) [Milk Pudding (Jamcy)] Akane-chan Challenge! 2.5-kaime (VOICEROID)

(Warabe Jitsuno Koukou Bunka Matsuri Duel Carnival) [Michu★Honey (Hikari.)] Kattobingu wa Challenge tte Kotoda ze! (Yu-Gi-Oh! Zexal)

Yuunou Engineer ni wa Ura no Kao ga Aru Watashi o Kaihatsu suru Dekiai Step | 能干程序员隐藏的一面 把我“开发”的溺爱步骤 1-10

(C84) [Rotary Engine (Kannazuki Motofumi)] HIGHSCHOOL OF THE DATE (Date A Live)

Captain Saimin Icha Love Challenge

(C75) [Rotary Engine (Kannazuki Motofumi)] Hannugi (Kannagi)

[Rotary Engine (Kannazuki Motofumi)] Uchinoyome (Gochuumon wa Usagi desu ka?) [Chinese] [Sinris个人汉化] [Digital]

[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]

Nekura Megane ♀ | The Creepy Glasses Girl

[Abubu] Iemoto Challenge Series - Jinrui Hasshou no Chi de Mikai no Buzoku to Bunka Kouryuu Isshuukan (Girls und Panzer)

Guuzen Saikai Shita Doukyuusei o Otosu Hanashi

(C72) [Rotary Engine (Kannazuki Motofumi)] Kodomo Geass. (Code Geass)

[Terasu] Teitoku ga Shiranai Tokoro de Yarichin Seibishi to no Uwaki Sex ni Dohamari Shita KanColle no Tenryuu | While admiral doesn't know it, Tenryuu is having NTR sex with an engineer. (Kantai Collection -Kancolle-) [English]

[Nekomata Naomi] Here Comes a New Challenger! (COMIC Kairakuten Beast 2007-04) [English] [Clearly Guilty Translations]

(Dramatic Change 3) [Ne. (Shiromitsu Daiya)] Challenge! Ochinchin Purupuruen ~3-nin nara Dekiru Mo~n~ (THE IDOLM@STER SideM)

Misaki-chan no Lotion Challenge

[Kagono Tori] Ganbatte Ikitekita Ojisan ga Mukuwaretemo Iijanai | Middle-Aged Men Who Live Earnestly Deserve a Little Pay-Off Right? (COMIC LO 2019-04) [English] {Mistvern} [Digital]

[Metacorapusu (Metacora)] JC Chinpo-beya Ikkagetsu Seikatsu Challenge!! (Kouhen) [Digital]

Kanako Challenge

[Korotsuke] Nekura Megane ♀ | The Creepy Glasses Girl [English] [Ongoing] {darknight}

[Nishina Satomi] Kyokan-kun to Kogara-chan Shinchousa 43-centi de SEX Challenge - Giant and a small lady.

[gymno (Kiriya)] Shinoburedo! [Digital]

(C93) [MeltdoWN COmet (Yukiu Con)] Kanade Challenge Kouhen [Chinese] [Lolipoi汉化组]

Futanari Milk Challenge 2

(Reitaisai 8) [TLE (Fujiyama Takashi)] Touhou Nyuusatsuroku (Touhou Project)

(C63) [Kodomo Challenge (various)] Mainiti-ga-Kodomo-no-hi

[Chi-Ra-Rhyzhm (Hidaka Toworu)] N/A Engine (Atelier Totori)

(C68) [Amusement Engineering (Serizawa Houri)] Shougai Chuusei Sono ni Shiki (Full Metal Panic!)

(SC40) [Delayder (Makinon TM)] Yousei-san no?! Himitsu no Bouken no Tobira Preview ver (Challenge First-Year-Student)

(C93) [Aozora Shoujo (Shirane Taito)] Rika no Oshiri Challenge (THE IDOLM@STER CINDERELLA GIRLS)

Kodomo de Challenge 4

Angel's stroke 137 Yui-chan Challenge!! 2

Izen to Shite Nigate na Senpai o Otosu Hanashi

[Heroine Engineering (TARE Katsu)] Haiki Shobun No.3 (Street Fighter) [Digital]

(C86) [Marked-two (Hideo)] Taihou Challenge! (Kantai Collection -KanColle-)

(C94) [Bizensiki Roroppu (Bizen)] Oshiri Ecchi Challenge (Hatoba Tsugu)[Chinese][夏姬霸汉化组]

(C76) [Inudrill Lolita Engine (Inumori Sayaka)] DREAMING (Atelier Rorona)

Challenge Completed!

Nantaika Triad ♂ to Yukaina Nakamatachi Ochinchin Challenge Bon

Otsubone Taiiku Kyoushi Mesu no Hon | 敗犬體育老師♀的本本

[Panda 4gou (Shima Kyousuke)] Lag Lag 2 (Lagoon Engine) [English] [Nezuh-Kun] [Digital]

Kodomo de Challenge 2

Akatsuki-chan Mayonaka no Otoile Challenge

Nekura Megane ♀ | The Creepy Glasses Girl

[Marui Maru] Tanetsuke Tokutaisei | 播种特待生 (Fuwatoro ♥ Jusei Chuudoku!) [Chinese] [鬼畜王汉化组] [Digital]

[Rotary Engine (Kannazuki Motofumi)] MBJS ga Maiorita! (Watashi ni Tenshi ga Maiorita!) [Digital]

[Usui Mayo] Yuunou Engineer ni wa Ura no Kao ga Aru Watashi o Kaihatsu suru Dekiai Step | 能干程序员隐藏的一面 把我“开发”的溺爱步骤 1-7 [Chinese] [莉赛特汉化组]

DUAL:ENGINES

Utsuho Challenge!! ~Yobai ni Chousen~

(C82) [Rotary Engine (Kannazuki Motofumi)] Niko Nama. (Accel World)

(circle roman hikou) JK5人、性癖乱れ咲きっ!! (comic shingeki 2014 09)

Sassy-Sister Complex! 3.0

[Satuyo] Pool de Challenge! Boyish (COMIC LO 2017-12) [Chinese] [code183汉化] [Digital]

Namaiki Kuchikukan Wakarase Challenge | I'll Make You Understand Challenge

[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]

Shizuku to Airi no 1-kagetsu Dousei Challenge!! | 雫和愛梨的一月同居挑戰!!

(Reitaisai 9) [TLE (Fujiyama Takashi)] Aru Shingetsu no Yoru, Patchouli Knowledge wa Jukkaishita. (Touhou Project)

[Kirsi Engine] Laura no Ketsu Ana Shugyou (Turn A Gundam)

[Tokyo Club (ZuN, Christine Takeda)] F2 (Various)

Otsubone Taiiku Kyoushi Mesu no Hon | The Phys Ed Dept’s Queen Bitch Book

(C68) [Rotary Engine (Kannazuki Motofumi)] Shimashima Kooh-nyan (Sukatto Golf Pangya)

[Boxphilia Engineers (Thomas TABAYASHI)] Departures [Chinese] [不可视汉化]

Chaldea Outdoor Challenge Abby-chan to Issho 3

Promesu

Nekura Megane no Hon | 음침안경의 책

Futanari Milk Challenge 3 | 迫真水泳部・扶她的里技―第三章

(Futaket 14) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 3

Naisho no Enkou Challenge | Secret Sugar Daddy Challenge