Challenger Quant Engineer

Bibia Saikou ka yo!

Satania VS Shokushuburo

(C64) [kodomo challenge (Various)] natsu no kansatsu nikki | Summer observation diary (Original) [English]

Harakudashi Challenge 2

[Danzi Engine (Shiba Yuuji)] Osugaki Sentou [Digital]

(C95) [Labomagi! (Takeda Aranobu)] W Jeanne to Off-Paco Challenge (Fate/Grand Order) [Chinese] [黎欧x新桥月白日语社汉化]

Nekura Megane ♀ | The Creepy Glasses Girl

(SC31) [The Latest Engine (Fujiyama Takashi)] Iincho no Tsundere Daisakusen! (ToHeart2)

Dosukebe Muramatsuri 1 - Jigoku no Cli Zeme Mesugaki Taikyuu Renzoku Acme Challenge Hen

(C92) [Rotary Engine (Kannazuki Motofumi)] Satania VS Shokushuburo (Gabriel DropOut)

[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 1-5 [Chinese] [莉赛特汉化组]

(Utahime Teien 4) ["Tsu" ga Mittsu. (Tsuttsu)] Akane Challenge!? 2 (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [无毒汉化组]

Tanpan Kozou no Oppai Challenge!

Double Up Challenge!

Makabe no Oshiri Challenge

(COMIC1☆2) [The Latest Engine (Fujiyama Takashi)] DRAGON SLAVE 2 (Dragon Quest III)

[Korotsuke] Nekura Megane ♀

Akane-chan Challenge! 2.5-kaime

Onii-chan swallowing challenge！

[sky & si-o] 罪世 - バーサーカーチャレンジ | Tsumi Yo - Berserker Challenge [EN]

Kouiu Koyuki mo Dou desu ka?!

(Zennin Shuuketsu 9) [Chikuwa to Kyuuri (Sakuraba Chizuru)] Otou-san Challenge (Naruto)

(C94) [Moruda Ramenya (Moruda)] Okei-san no Nukinuki Dosukebe Challenge | Okay-san's Dirty Lewd Challenge (Girls und Panzer) [English] {Doujins.com}

(C94) [Sakura Garden (Shirosuzu)] Chaldea Outdoor Challenge Abby-chan to Issho (Fate/Grand Order) [Chinese] [脸肿汉化组]

Kasen-chan no Jasen Rouraku Challenge

U Challenge

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

(C101) [chori (Chorimokki)] Nanjamo to Ura Gym Challenge!! | 奇树的秘密相声挑战!! (Pokémon Scarlet and Violet) [Chinese] [我今天爆炸了个人汉化]

[Tenchuugumi] Queen Sayoko's Challenge (Ah! My Goddess!) English

[Rotary Engine (Kannazuki Motofumi)] All-Rounder no Oshigoto! (Ryuuou no Oshigoto!) [Digital]

(C95) [Fuwatoro★Marinepolis (Sumitomo)] Theater Challenge (THE IDOLM@STER MILLION LIVE!)

Power Shovel and Fire Engine

(COMIC1☆11) [D.N.A.Lab. (Miyasu Risa)] An ENGINE (Kantai Collection -KanColle-)

We Can't [English] [Rewrite] [olddog51]

Shimakaze-kun Challenge Shippai

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

Dairoku! Otoile Challenge

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

Martina Onee-chan no Seikatsu

Niko IRL.

Yellow Heart-sama to Osoto de Ecchi Suru Hon

Nekura Megane ♀

Futanari Milk Challenge | 扶她榨乳挑战

(C93) [Rotary Engine (Kannazuki Motofumi)] Mameshiba (Gochuumon wa Usagi desu ka?)

[Rotary Engine (Kannazuki Motofumi)] Trapezohedron wa Kimi ni Kagayaku (Haiyore! Nyaruko-san) [Digital]

[Hibon (Itami)] Yuu-kun CHALLENGE!! Kobe Hen [Digital]

(C94) [Carnage Engine (Bakudanbonbon)] Nogi Sonoko wa Kanojo de Aru (Yuuki Yuuna wa Yuusha de Aru)

Pancakes 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 1-17

(C94) [Bizensiki Roroppu (Bizen)] Oshiri Ecchi Challenge (Hatoba Tsugu)

[Sakura Garden (Shirosuzu)] Chaldea Outdoor Challenge Abby-chan to Issho 3 (Fate/Grand Order) [Digital]

(SUPER11) [Astonish (Naitou Naito)] Kodomo Challenge (Various)

[Korotsuke] Nekura Megane ♀

Natsukoi Challenge | Summer Love Challenge

(SC37) [The Latest Engine (Fujiyama Takashi)] Doripai (Tengen Toppa Gurren Lagann)

[Sakura Garden (Shirosuzu)] Chaldea Outdoor Challenge Abby-chan to Issho 2 (Fate/Grand Order) [Chinese] [靴下汉化组] [Digital]

Honoka Challenge! 2

Kids Challenge

[Mousou Engine (Korotsuke)] Tomodachi no Hahaoya ni Nagusamete Morau Hanashi [Chinese] [枫原万叶汉化] [Digital]

DUAL:ENGINES

[Rotary Engine (Kannazuki Motofumi)] Ore, Naedoko ni Narimasu. (Ore, Twintail ni Narimasu.) [English] [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 1-5

[Yonemochi Akihiko] adult challenge 1

(Futaba Gakuensai 9) [1000AP (Various)] Kodomo de Challenge 5

[Mousou Engine (Korotsuke)] Izen to Shite Nigate na Senpai (Hitozuma) o Otosu Hanashi | The Story of How I Seduced My Old Still Hard to Deal with (Married) Senior [English] {darknight}

(C91) [Angelic Feather (Land Sale)] Flan-chan no Saimin Nikubenki Challenge (Touhou Project)

Challenge Days

(C79) [Rotary Engine (Kannazuki Motofumi)] Sukima no nai Sekai (The World God Only Knows) [English] [biribiri]

[Fukuyama Naoto] Saimin Tengoku Challenge 06 (COMIC BAVEL 2022-02) [Chinese] [萬神殿牛頭人個人漢化] [Digital]

(C67) [The Latest Engine (Fujiyama Takashi)] TLE-KRex (Keroro Gunsou)

(C75) [Rotary Engine (Kannazuki Motofumi)] Rizumi Tengoku (Doki Doki Majo Shinpan!)

Teisouring Challenge

(CR35) [The Latest Engine (Fujiyama Takashi)] PW TLE-PW03 (Final Fantasy VII)

(C86) [Contamination (eigetu)] Maki Nico Lesbian Challenge (Love Live!) [Incomplete]

Etorofu-gata Muchikko Kodomo Challenge

(C95) [Taikan Kyohougumi (Azusa Norihee)] Sakura-chan to Oshigoto Challenge - Ona-Hole Challenge with Sakura (Cardcaptor Sakura) [English] [biribiri]

Ganso Koukyuu Puff Puff Ikoi no Sakaba

(C94) [Minamono (Minamo)] Ko-Gil Challenge (Fate/Grand Order) [Chinese] [theoldestcat汉化]

[Irojikake Matome Blog (Kurokawa Otogi)] Renzoku Kyousha Challenge (Paizuri Senmon Zasshi "Zettai Chichi Kyousha" Vol 1) [Textless]

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