[Underground Campaign (Senga Migiri, jin)] Dokata Kuchiman Hole - Tobi Hen
Chika Tougijou Sen - Underground Colosseum Sen 4
(Reitaisai 8) [French letter (Fujisaki Hikari)] Pedolia! underground (Touhou Project) [Chinese] [戀芙蘭催婚協會會長封獸鵺個人漢化]
(C78) [bolze. (rit.)] The Sunshine Underground (Heart Catch Precure)
[Pipo] A Study on the Boundaries of Cheating
A Study on the Boundaries of Cheating
(C59) [P-Forest (Hozumi Takashi)] Enzai (Inuyasha) [English] [HentaiGroup]
(C78) [Kougeki (Ootsuki Wataru)] Pleasure Ground (Touhou Project)
Fujun Group Kouyuu
Sanranbasho wa Uchuu Pilot | Spawning Ground Space Pilots
(C81) [PNO Group (Hase Yuu)] Illya-bun Hokan Keikaku 5 (Kari) ga FuyuComi ni Maniaimasendeshita Gomennasai Hon (Fate/kaleid liner Prisma Illya)
A Study on External Narcissim
[Anthology] Bessatsu Comic Unreal Teisou Kannen Gyakuten Hen [Chinese]
[詩乃譜] Rings & Ear Tags - Group of Three Cherry Boys -
Saiin Sennou Salon ~Urenai Idol Group Saisei Keikaku~
(C93) [A.S.G Group (Misonou)] Youmagun Ou Kakka no Dosukebe Dealer (Dragon Quest XI)
Kyuujitsu no Sugoshikata
(Bokura no Love Live! 2) [Yumemiru Ichigo-chan (Gyoniku Sausage Funsai Gyokurocha)] NozoNicoshiki xxxx-Juku | NozoNico Style XXXX Study (Love Live!) [English] [/u/ scanlations]
Sonna ni Kirei Janakute Ii | 不用那么美丽也可以 Ch. 1
Orgy | 狂欢同学会
, JINX Come On! Shoot Faster!
[Cyclone] Kagami ni Mukau Shoujo (Magic Knights Rayearth)
Pure Majo Study XXX
(C69) [RED RIBBON REVENGER (Makoushi)] Valhalla ~ Dainishou~ Fuyu no Arashi (Spiral) [Digital]
Sister's Study Interuption [English] [Rewrite] [EZ Rewriter]
[PURUpyon Saitou] Otona no Benkyou | Adult Studies (Midara na Haha Shishunki na Boku) [English] [sirC]
[Takanabe Chitose] UNDER GROUND
(ComiComi8) [GROUND-Zero (Inui)] Riro Seizen (Touhou Project)
[Nakaji Hana] melting ice love ground (RAW)
(C92) [Digital Accel Works (INAZUMA)] PRETTYUNKNOWN'S BATTLEGROUNDS (Kirakira PreCure a la Mode)
(C88) [CRIMSON GROUND (Miyashiro Sousuke)] Atago-neesan to Hokyuu o Isshuukan (Kantai Collection -KanColle-)
Buchou to Kachou | 部长与课长 1-3
[Undergroundou] Seiyoku Bakuhatsu Shounen Vol. 3 -Sex Sense-
[Napo] Let's Study! (COMIC ExE 16) [Chinese] [Digital]
Pure Majo Study XXX | Unschuldige Zauberstunde XXX
Devil Bitch Project
(C84)[PNO Group (Hase Yuu)] Full Color☆Illya Bun Hokan Keikaku! (Fate/stay night)
[Groucho (Enkin)] Azuki Azusa no Hentai teki na Seikatsu. (Hentai Ouji to Warawanai Neko.)
(C62) [Anorak Post (Akiyoshi Yoshiaki)] Love Mao (Ground Defense Force Mao-chan)
UNIGAL
Albino Sakura-chan to Ama Ecchi
Study Steady
Underground Dream Imprinting
[blackmonkey] study together
(CSP6) [CRIMSON GROUND (Miyashiro Sousuke)] Mutsu Nee-chan ni Hokyuu de Bakuchin (Kantai Collection -KanColle-)
(C80) [CRIMSON GROUND (Miyashiro Sousuke)] Mamitte Finale (Puella Magi Madoka☆Magica)
(C87) [PNO Group (Hase Yuu, Yamamoto Ryuusuke, Hikawa Yuuki)] Carni☆Phan tic Factory 7 (Fate/kaleid liner Prisma Illya, Fate/Zero) [English] [Tigoris] [Incomplete]
Hatsukoi wa Jukusei Sasete
A Study in Rosy
(C43) [Group 601 (Various)] LADY BE GOOD (Floral Magician Mary Bell, Yadamon)
(C82) [PNO Group (Yamamoto Ryuusuke, Hikawa Yuuki, Hase Hiroshi)] Carni Phan tic Factory 2 (Fate/stay night, Fate/zero)
[Ukatsu de wa Nai (noukatu, Minase Kuru)] Vtuber Sokuhame Kairaku Ochi Hon (DeepWebUnderground, Tsukino Mito, Shizuka Rin) (English) (Pangean) [Digital]
Futari no Nichiyoubi
[Inoue Nanaki] Muchi na Ojou-sama no Obenkyou | The Naïve Lady’s Naughty Study (ANGEL Club 2016-03) [English] [N04h]
[BIG BOSS] Ichioku Sou Gyokusai╱Souko Sensei no Hachimitsu Jugyou (Rikujou Boueitai Mao-chan, Asagiri no Miko)
Zokubutsu.zip Chika | Underground
Mahou de Ecchi no Obenkyou! | Studying Sex with Magic!
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen [Chinese] [沒有漢化] [Digital]
(Underground Carnival) [Kougeki (Ootsuki Wataru)] Speechless (Touhou Project)
[PNO Group (Hase Hiroshi)] Madamada!! Illya Bun Hokan Keikaku! ~Konya mo Asa made Love Love H Hen~ (Fate/stay night) [English] [Tigoris Translates]
(C83) [Tricot (Stella.Ing)] From The Underground (The Legend Of Zelda) [English] =SW=
(C85) [Pettanko! (0-G)] Ily☆Kuro-san Chi no Jika Hatsuden to Ero Jijou (Fate/kaleid liner Prisma Illya)
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 3 [Chinese] [沒有漢化] [Digital]
(C71) [PNO Group (Hase Yuu, Hikawa Yuuki)] TH2tic Factory -XRATED- 2 (ToHeart 2)
Henai Study
Shuugaku Ryokou de YouCha to Onaji Group ni Nacchatta Mekakure InCha-chan
(CR29) [Hisuitei (Izumi Tsubasu, Sakai Hamachi)] Pure Study (Air)
(C63) [T2 ART WORKS (Tony)] Kaburimon Vol. 1 (Ragnarok Online) [English] [Doujin-World + Hentaigroup] [Decensored]
Steady Study
Sunao ja Nai Kanojo to no Sesshikata
[Oryou] Yutsuki Onee-chan to Issho ni Benkyou Shiyo | Come Study Together With Yutsuki Onee-chan [English] {Doujins.com}
Chika Tougijou Sen - Underground Colosseum Sen
Assboy Anal StudieS | AssBoy Koukou Danshi 2
[Tsukimori Izumi] Systematic Study Group [English][SaHa]
(C81) [PNO Group (Hase Yuu)] Carni☆Phan tic factory (Carnival Phantasm) [English] [Tigoris Translates] [Incomplete]
Mitsugase Chika Idol | A TRIBUTE FOR THE UNDERGROUND IDOL
Umi Yama Sora no Monogatari
[Sannyuutei Shinta] Hitozuma Gentei Sex Companion | The "Married Wives Only" Sex Group [English] [R-IC] [Digital]
(C99) [CRIMSON GROUND (Miyashiro Sousuke)] Kyuujitsu no Sugoshikata -Higuchi Madoka hen- (THE iDOLM@STER: Shiny Colors) [Chinese] [黄记汉化组]
[ffkan]Underground Battle 5
(C97) [group yuenao (湯江なお)] 霧雨魔理沙売ってます@博麗神社 (東方Project)(中国翻译)
(C87) [Group Hinoran (Wang-Pac)] Kuroobi Princess [English] [TSHH]
(C87) [CRIMSON GROUND (Miyashiro Sousuke)] KAEDESAN MAJI GODDESS SR+ (THE IDOLM@STER CINDERELLA GIRLS) [Chinese] [瓜皮汉化]
Illustration
[Crazy Clover Club (Shirotsumekusa)] Riku-Mao Complex (Ground Defense Force Mao-chan)
(C90) [A.S.G Group (Misonou)] Yamaoku e Ikou! (Dragon Quest V)