Hitsugi
[Sajipen] Midara ni Ochite (COMIC Shitsurakuten 2015-01) [Chinese] [無邪気漢化組]
[SaHa] Fractal Underground - Warm Kotatsu (English)
(C50) [MELT-DOWN (Various)] Berceur (Jigoku Sensei Nube, Dirty Pair Flash, Neon Genesis Evangelion)
Flower Attack Moonlight
Minami Underground | 미나미 언더그라운드
Enkou Mor-san
HUG and KISS
(COMIC1☆9) [Kuma-tan Flash!, Eclipse (Hanao., Rougetu)] HELLO (Kantai Collection -KanColle-) [Chinese] [CE家族社]
(C80) [Kuma-tan Flash!, Eclipse (Hanao., Rougetu)] KUMAlipse2 (Touhou Project)
(COMIC1☆4) [Kuma-tan Flash! (Hanao)] Mokotan to Fushigina Heya (Touhou Project)
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 3 [Digital]
(C89) [Kuma-tan Flash! (Hanao.)] Se-no! (Kantai Collection -KanColle-) [Chinese] [CE家族社]
V Tsumamigui
(C76) [Kuma-tan Flash! (Hanao)] Tube Rose (Touhou Project)
Friends Gyaku Rape Goudoushi 2
[ONEONE1 (Ahemaru)] Roshutsu Kaijin Flasher Girl ~Kyonyuu Sukeban Marimo AFTER EPISODE~ [English] [SMDC]
(C75) [FLASH POINT (Aoi Takayuki)] 《0》 2
(C82) [Kuma-tan Flash! (Hanao.)] 2010-2011 Matome Bon 2 (Touhou Project)
(C71) [Kensoh Ogawa (Fukudahda)] Ashford Gakuen Underground (Code Geass) [English] [0405]
Otona o Karakau n ja nai!
[Taniguchi-san] -Tamashii-INSERT LEVEL 2 Shojo Dorobou (COMIC Unreal 2015-06 Vol. 55) [Chinese] [無邪気漢化組]
(C74) [Dakimakuma, Jingai Makyou Club (WING☆BIRD)] CHARA EMU W☆BR004 FLASH BACK1984 P01 (Various)
(CR21) [Rocket Kyoudai (Various)] Honey Flash (Cutey Honey F)
(SPARK8) [Radistar (157)] Triglav Underground Railway (Tales of Xillia)
(CR30) [SOFTCHARM (SOFTCHARM)] FULL-SWEEP EARLY UNDERGROUND (Various)
(C92) [Kuma-tan Flash!, Eclipse (Kumao Mofumofu, Rougetu)] Cupla (Kantai Collection -KanColle-) [Chinese] [朔夜汉化]
(Kouroumu 5) [Kuma-tan Flash! (Hanao)] Kawazugari -Frog hunting service- (Touhou Project)
Roshutsu Wakazuma Kikiippatsu! - Flashing wives!
(Reitaisai 8) [Kuma-tan Flash!, Eclipse (Hanao., Rougetu)] KUMAlipse (Touhou Project)
(C90) [ONEONE1 (Kakinomoto Utamaro)] i★dol Shouko FINAL FLASH 2ndSTAGE
[Unknown] Chika Teien | Underground Garden [Chinese]
(CR20) [Mengerekun (Captain Kiesel)] Daikirin (Various)
Miwaku no Red Flash
Chika Tougijou Sen - Underground Colosseum Sen 1
(Reitaisai 6) [Kuma-tan Flash! (Hanao)] Scarlet (Touhou Project)
(C99) [Kuma-tan Flash! (Kumao Mofumofu)] Konya Sabishii Hinageshi wa (Fate/Grand Order)
(Osuket 2) [UNDERGROUND CAMPAIGN (Senga Migiri, jin)] Yasei
土方口マンホール 鳶編
(C77) [Flash Point (Aoi Takayuki)] Natsu Shounen - Summer Boy (Summer Wars)
Vtuber Sokuhame Kairaku Ochi Hon 2
Konya Sabishii Hinageshi wa
(Reitaisai 11) [Kuma-tan Flash! (Hanao.)] concern (Touhou Project)
[RED RIBBON REVENGER (Makoushi, Takatoo Juna)] Shiro (Spiral, Tokyo Underground)
(C91) [Kuma-tan Flash!, Eclipse (Hanao., Rougetu)] Se-no!! (Kantai Collection -KanColle-)
[Nawanoren (Gachoon)] NNDP 9 (Dirty Pair Flash) [2017-12-31]
(C81) [Caramel Macchiato (Maki)] [Sokuhou] Wriggle wa Otokonoko | [News Flash] Wriggle is a Boy (Touhou Project) [English] [LoliAce]
[Sadistic Mary (Hattori Mitsuka)] Queen Bee Honey Flash (Bleach)
[Ranchiki (dotsuco)] Mesuochi Idol-kun | Feminizing Degeneration Idol-kun [English] [Nisor] [Digital]
Underground Hotel Vol. 1
[Nanase Makoto] Chika Ryuushutsu - Leaked to Underground
Honey 7 Flash!
Straylight Porno + OMAKE BOOK C96
Underground Sex Fight Club
Nee-sama no Inai Chinjufu
Can't go back!
Sabbath wa Houkago, Chikashitsu de | The Sabbath happens after school, in the underground room
(C89) [Kuma-tan Flash! (Hanao.)] Yuuwaku no Harusame (Kantai Collection -KanColle-)
Himitsu Yuugi | 비밀유희
[LFM (Usagi)] Flashing Pink (Sakura Taisen)
[Charie] Child Resolution (Iromeki Girls) [English] [Yuri-ism]
Chika Tougijou Sen - Underground Colosseum Sen 4 | 지하투기장 센4
(C69) [RED RIBBON REVENGER (Makoushi)] Valhalla ~ Dainishou~ Fuyu no Arashi (Spiral)
Maso no Keifu
(C88) [Kuma-tan Flash! (Hanao.)] Akatsuki datte Shireikan no Osewa kurai Dekirundakara!! (Kantai Collection -KanColle-)
(C89) [Yamaneko Jinja (John Inu)] UNDERGROUND ASCENDANCY (Touhou Project)
(Kemoket 4) [Flash Point (Various)] PONY Love (My Little Pony Friendship is Magic) [Chinese]
[Cyclone] Kagami ni Mukau Shoujo (Magic Knights Rayearth)
[Underground Campaign (Senga Migiri, jin)] Dokata Kuchiman Hole - Tobi Hen
Dirty Light
(Reitaisai 8) [Kuma-tan Flash! (Hanao)] Except soul (Touhou Project)
[C's cheese] ANAN Gango no Miko (Tokyo Underground)
[Maakou] FLASH BACK
(Reitaisai 12) [Kuma-tan Flash! (Satetsu)] Oji-san of Scroll | Uncle of the Scrolls (Gensoukyou ni Tanetsuke Oji-san ga Yattekita YA-YA-YA) (Touhou Project) [English]
Flash Noise
[A-mania9's] BEHAVIOUR+17 ~BUNNY FLASH!!~[English][lodhel] (part 1)
[Hatoba Akane] Touma Senki Cecilia IF Lunaria to Hentai Ouzoku no Wana ~Shuuaku Kaizou Hen~ | Demon Slaying Battle Princess Cecilia IF Lunaria and the Trap of the Perverted Royal Family ~Underground Shit Fight Chapter~ [English] [CulturedCommissions]
(C78) [Crazy9 (Ichitaka)] Alice in Underground (Ookami-san to Shichinin no Nakama-tachi) [English] {doujin-moe.us}
[Binbi] Kanojo to Himitsu no Lingerie (Otokonoko HEAVEN Vol. 29) [English] [mysterymeat3] [Digital]
(C89) [CREAYUS (Rangetsu)] FLASH NOISE (CODE GEASS: Lelouch of the Rebellion)
[AliceComplex (Naganohara Nis)] Alice in Underground
(C91) [Kuma-tan Flash!, Eclipse (Hanao., Rougetu)] Supplement (Kantai Collection -KanColle-)
Chika Tougijou Sen - Underground Colosseum Sen 5
(C84) [Kuma-tan Flash! (Hanao.)] Mebius:last (Touhou Project)
(Reitaisai 7) [Kuma-tan Flash! (Hanao)] Mebius:loop+Omake (Touhou Project)
Kono Watakushi ga Saimin ni Makeru Wake Arimasen wa!
(Kemoket 4) [Flash Point (Various)] PONY Love (My Little Pony Friendship is Magic) [Chinese] [星翼汉化组]
Chika Tougijou Sen - Underground Colosseum Sen 2
[UNDERGROUND CAMPAIGN (Senga Migiri)] USHI to KOBUSHI [Chinese] [同文城] [Digital]
(SC21) [Flash Point (Kawai Takahiro)] dancing DOLL
Shinso Makou Shoujo THE COMIC White Holy Sword Rizuve and Red Flash Raiza Episode 2
(C87) [Kuma-tan Flash! (Various)] Hamedori Collection (Kantai Collection -KanColle-)
[Yoshitatsu Kiichigono] Flashbang! [ENG] Hi-res
Shukushoubyou Kenshuu
(C75) [Sadistic Mary (Hattori Mitsuka)] FLASH BACK 20081230 (Bleach)
(C74) [Jingai Makyou Club (Wing Bird)] Charaemu W BR003 FLASH BACK1985 P03 (Various)
[Stapspats (Hisui)] Shinso Makou Shoujo THE COMIC White Holy Sword Rizuve and Red Flash Raiza Episode 3
[Flash Point (Aoi Takayuki)] Oku-sama wa Mara Tsukai [Sample]
(C84) [Kuma-tan Flash! (Various)] Kanmusu Collection (Kantai Collection -KanColle-)
(Shota Scratch 13) [Flash Point (Aoi Takayuki)] P-Boy [English] [mysterymeat3]
(C47) [Mengerekun, VETO (Captain Kiesel, ZOL)] Flash Back (Dirty Pair Flash)
[Ameya Kirica] Chichi Pri! [Chinese]
BEHAVIOUR+17 ~BUNNY FLASH!!~
タイムマシンにおねがい
(C45) [Monkey Reppuutai (Various)] Dengeki Monkey Reppuutai V (Various)
(C93) [ARCHANGEL (Ayanokouji Haruka)] PRISMA FLASH (Fate/kaleid liner Prisma Illya)
(Reitaisai 12) [Kuma-tan Flash! (Yukataro)] Marisa-chan no EXtacy Stage Kouryaku! | Marisa-chan's EXtacy Level Guide! (Gensoukyou ni Tanetsuke Oji-san ga Yattekita YA-YA-YA) (Touhou Project) [English]
(Reitaisai 8) [French letter (Fujisaki Hikari)] Pedolia! underground (Touhou Project) [English] [MrBubbles]
FLASHBACK (Toriko)
(C85) [LongHornTrain (CyoCyo)] Hirameke! Megami no Love Kiss Wand | Flash! Goddess of the Love Kiss Wand (Dokidoki! Precure, Suite Precure) [English] {doujin-moe.us}
(Reitaisai 9) [Kuma-tan Flash!, Eclipse (Hanao., Rougetu)] KUMAlipse3 (Touhou Project)
(C92) [Kuma-tan Flash!, Eclipse (Kumao Mofumofu, Rougetu)] Cupla (Kantai Collection -KanColle-)