Koa Campground Leng

(C79) [Koakuma Sageha (Sage Joh)] Haruka no Houkago Twuru Twuru Club (Amagami)

Utsuho Challenge!!

[Koala Machine (Tokiwata Miki)] BAMBINA (King of Fighters)

[Akuten Soushin (Kokutou Nikke)] Koakuma Ishu Botai Soukan (Touhou Project) [English] [Digital]

[dotsuco] Nametake Challenge!

Maki Nico Lez Challenge

(FF38) [Xien] Zhi-leng Xiao-ying (Arknights) [Chinese] [Digital]

Iemoto Challenge Series - Jinrui Hasshou no Chi de Mikai no Buzoku to Bunka Kouryuu Isshuukan

[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]

(C76) [Arisan-Antenna (Koari)] Love Communication 3+ (THE iDOLM@STER) [Decensored]

Chino to Kokoa no Himitsu no Kanshasai

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

[Koala Machine (Tokiwa Kanenari)] Akari-chan ga Ichiban! (Hikaru No Go)

Futanari Milk Challenge | 扶她榨乳挑战

Angel's stroke 140 Yui-chan Challenge!! 3

Saimin Tengoku Challenge 05

(C84) [Kinqhassin (Koaya Aco, NET)] Q ni Kita no de. 1.0 (Neon Genesis Evangelion)

Nanjamo to Ura Gym Challenge!! | 奇树的秘密相声挑战!!

(C92) [Slime Kikaku (Kuriyuzu Kuryuu)] Akatsuki no Oyome-san Challenge (Kantai Collection -KanColle-) [Chinese] [脸肿汉化组]

(COMITIA 58) [Koala Machine (Satomi Hinako, Tokiwa Kanenari)] Ja Ja Uma Narashi (King of Fighters)

(C76) [Arisan-Antenna (Koari)] Nettaiya (THE iDOLM@STER)

Seieki Tamekomi Challenge

[Nekoarashi (Yana)] Igyo no Kimi to | A Tentacled Romance Ch. 1-3 [English] [Metaphrastes] [Digital]

Akane-chan Challenge! 2.5-kaime

(COMIC1☆11) [@ism (Aono Ribbon)] Fushigi no Kuni no Chino-chan (Gochuumon wa Usagi desu ka?) [Chinese] [绅士仓库汉化]

(Futaket 14) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 3 | 迫真水泳部・扶她的里技―第三章[风俗店篇] [Chinese] [鬼迷日眼的莱科少校个人川话化]

F6 Matsuno Karamatsu no Sex Challenge

Hina Iinchou Amae Heta Kokufuku Challenge | 日奈委員長的撒嬌困難克服挑戰

[Shota Mangaya-san (orukoa)] Ibasho ga Nai node Kamimachi shite mita Suterareta Shounen no Ero Manga | A Dirty Manga About a Boy Who Got Abandoned and Is Waiting for Someone To Save Him Ch. 2 [English] {Chin²} [Digital]

[ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 3 [Digital]

[Ameshoo (Mikaduki Neko)] Touhou TS Monogatari ~Koakuma hen~ (Touhou Project) [Digital]

Renzoku Kyousha Challenge

Kanoka Challenge_plot 3| 花乃香的难题_情节3

Koakuma no Koaku-chan

(C58) [Koala Kikaku (MON-MON)] Roshotsu Choukyou EX - Hitozuma Inme Roshotsu Dorei

Ane☆Volleyball Challenge

[ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 3 [English] {Hennojin} [Digital]

Ore no Kanojo wa Koakuma Kokoa-san. 3

(C89) [DOGYEAR (Kujou Danbo)] Kokoa Complex (Gochuumon wa Usagi desu ka?) [Chinese] [Sinris个人翻译]

[Eucalyptus House (Minikoara)] Himeko-chan no Seishokusha Jijou (Ragnarok Online) [Digital]

(C91) [Atelier Hinata (Hinata Yuu)] Find myself (Gochuumon wa Usagi desu ka?) [English] {Hennojin}

Patchouli ga Koakuma ni Shiborareru Hon

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

[Koala Machine (Tokiwata Miki)] Shichiria no Ryuuzetsuran (King of Fighters)

(C91) [Sekine (Sekine Hajime)] Gochisou wa Kokoa desu ka? (Gochuumon wa Usagi desu ka?)

(C75) [Koakuma Sageha (Sage Joh)] Macross.zip (Macross Frontier)

I Challenge You!

[Metacorapusu (Metacora)] JC Chinpo-beya Ikkagetsu Seikatsu Challenge!! (Kouhen) | One-month lifestyle challenge: A Middle Schooler rooming in an apartment filled with dicks! (Part 2) [English][Black Grimoires][Digital]

(C86) [Kinqhassin (Koaya Aco, NET)] Mutsu Zukushi (Kantai Collection -KanColle-)

(C89) [DOGYEAR (Kujou Danbo)] Kokoa Complex (Gochuumon wa Usagi desu ka?)

稻妻篇，序

Nanjamo to Ura Gym Challenge!! | 奇树的秘密道馆挑战!!

(C90) [Akausagi (Fukuyama Naoto)] 100 challenge (Hundred)

[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]

Takagi Airi no 10-pun Challenge | Takagi Airi's 10 Minute Challenge

(C86) [Yamakawa Den'enfuukei (Yamada, Kawada)] HERE COMES A NEW CHALLENGER!! (High Score Girl)

(C94) [Fuwatoro★Marinepolis (Sumitomo)] Theater Challenge (THE IDOLM@STER MILLION LIVE!)

Jeanne Alter to Dakkou Challenge!!

[Shota mangaya-san (orukoa)] Kodoku Shonen to yasu gekkyu oyaji no sento ya apatodattari no ero manga

PatchouKoa Shujuu Gyakutenx

(Futaket 14) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 3 | 扶她榨乳挑战 3 [Chinese] [黄记汉化组]

(Reitaisai 12) [Nyankoromochimochi (Kotoba Ai)] Konomama dewa Koakuma to Deki Kon Shite Shimau!? (Touhou Project) [English] [Manabe_JP]

Koakuma ga Patchouli ni Biyaku Semen Sosoide Toriko ni Shichau Hon

(C92) [Kinqhassin (Koaya Aco)] Mamamama (Fate/Grand Order) [Chinese] [黑锅汉化组]

PatchouKoa Nyuuetsu Shujuu Gyakutenda

Okusama Challenge - Challenge of Wife

(Reitaisai 13) [Kuusou Monochrome (Abi)] Pachukoa Mix! (Touhou Project)

(C93) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 2

[Shota Mangaya-san (orukoa)] Ibasho ga Nai node Kamimachi shite mita Suterareta Shounen no Ero Manga Ch. 6 [Digital]

Kaitou Kokoa-chan

(Challenger! 29) [Udon no Hoshi (Saikyo Don)] Terasu Sekai de Uketomete -Zenpen- - The Catcher in the Tera world. (Pokémon Scarlet and Violet)

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

Renzoku Kyousha Challenge

(C91) [Sekine (Sekine Hajime)] Gochisou wa Kokoa desu ka? (Gochuumon wa Usagi desu ka?) [English] {Hennojin}

[Koala Machine (Tokiwa Kanenari)] Shinjitsu ni futa wo (King of Fighters)

(Kono Koe Todoke, Tsuki made mo Yon) [Milk Pudding (Jamcy)] Akane-chan Challenge! 3-kaime (VOICEROID)

（C96） Dairoku! Otoile Challenge

[Daishizen Juukou (Ashita)] Kyokina ana no Koakuma-san (Touhou Project) [Digital]

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

(C92) [Heartfolio (Himemiya Aoi)] Yuuga (Shinken!!)

(Reitaisai 14) [662KB (Jyuuji)] Koakuma ga Icha Love no Patchouli Hon (Touhou Project)

Kodomo de Challenge 2

(Shuuki Reitaisai 3) [Blossom Sphere (Sakurayu Haru, Yo)] Koakuma ga Marisa ni Patchouli to no Ai o Misetsukechau? Hon (Touhou Project)

W Jeanne to Off-Paco Challenge

Koakuma to Jusei suru made Derarenai Heya

(COMIC1☆10) [Come Through (Adumi Kazuki)] Chino to Kokoa no Himitsu no Kanshasai (Gochuumon wa Usagi desu ka?)

Chie-chan Gouhou Challenge!

(COMIC1☆10) [milkberry (Kisaragi Miyu)] skmzx3

(C65) [Koala Kikaku (MON-MON)] MON WORKS 0 (Various)

retuzyou to saitei｜情色欲与劣根性

[Eucalyptus House (Minikoara)] Shiroi Nyuuen (2017 Version) [Digital]

(C73) [Dotechin Tengoku, Arisan-Antenna (Ryuuki Yumi, Koari)] AzuMako to Ofuro ni Hairu Hon (THE iDOLM@STER)

(C90) [Kinqhassin (Koaya Aco)] Hyonna Koto kara Kyuu ni Otona ni Natte Shimatta Shimakaze-san to Heya de Futari ni Naru to Kou Naru (Kantai Collection -KanColle-) [Chinese] [好想去C91個人漢化]

[mizu] Poka Poka After (Kids Challenge) [Chinese] [Befreiungsfuehrer第五次个人汉化]

Futanari Milk Challenge 6

(C79) [Fuketsudan (Shokushu-san)] Koakuma Kansatsu Nikki (Touhou Project)

HERE COMES A NEW CHALLENGER!!

(C92) [PASTEL WING (Kisaragi-ICE)] Koibito wa Kokoa Onee-chan 2 (Gochuumon wa Usagi desu ka?)

(C93) [ANDOROGYNOUS (Kiyose Kaoru)] Futanari Milk Challenge 2

(Kouroumu 14) [Fumituki (Erotuki, Fumituki)] PatchouKoa Nyuuetsu Shujuu Gyakutenda (Touhou Project) [English] [Yerika]

[Metacorapusu (Metacora)] JC Chinpo-beya Ikkagetsu Seikatsu Challenge!! (Kouhen) | Middle Schooler in a Cock Filled Room for 1 Month Challenge!! (Pt. 2) [English] [DMC] [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]

Yuusha no Sairokubon Challenge

Girls from a Prestigious School Challenged to an Escape Game

Pancakes Challenge

[Koala Machine (Tokiwata Miki)] Kuroageha (Naruto) [English] {SaHa}

(C90) [Akausagi (Fukuyama Naoto)] 100 challenge (Hundred)

Tanpan Kozou no Oppai Challenge!

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

Oshikko Challenge!? | 小便挑战!?

Kokoa wa Rabbit House no Mono o Shiyou shita no kana