[Kuma-tan Flash! (Kumao Mofumofu)] Enkou Mor-san (Fate/Grand Order) [Digital]
(Reitaisai 9) [Kuma-tan Flash!, Eclipse (Hanao., Rougetu)] KUMAlipse3 (Touhou Project)
(Kemoket 4) [Flash Point (Various)] PONY Love (My Little Pony Friendship is Magic) [Chinese] [星翼汉化组]
Illustration
KNight Mare Underground ~Shimai Kishi, Kanraku Dungeon~ ch. 2
[SaHa] Fractal Underground - Warm Kotatsu (English)
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 4 [Digital]
Okuu to Kare no Hyouryuu Nikki
Supplement
Underground Sex Fight Club
(C74) [Jingai Makyou Club (Wing Bird)] Charaemu W BR003 FLASH BACK1985 P03 (Various)
Vtuber Sokuhame Kairaku Ochi Hon 2
(C90) [ONEONE1 (Kakinomoto Utamaro)] i★dol Shouko FINAL FLASH 2ndSTAGE
Dirty Light
[Shiruka Bakaudon] Uramono Zasshi No Fan Wa Yahari Orokamono De Aru | Fans of Underground Magazines are Truly Fools (COMIC Mate Legend Vol. 15 2017-05)[Chinese] [沒有漢化]
Kioku Soushitsu
[AKABEi SOFT (ALPHa)] FLASH BACK 2 (Tales of Destiny 2)
Haha No Kawaki | 義母的性飢渴
(Puniket 20) [Chronolog, Shoujo Zukin (Sakurazawa Izumi, Hatomugi Munmun)] Alice in the underground (Soul Eater)
[Studio Z-Agnam (Azuma Kyouto)] HONEY FLASH! 1 (Cutey Honey)
SSSS.DYNAZENON GRIDMAN UNIVERSE CHARACTER CONCEPT DESIGN
Muryoru Kangoku | The Swarm Approaches the Wicked Prison
(C78) [Crazy9 (Ichitaka)] Alice in Underground (Ookami-san to Shichinin no Nakama-tachi)
(Reitaisai 7) [Frac (Mitsuki)] Midnight / Flashlight (Touhou Project)
(C49) [H&K (Various)] Ero Manga Kenkyuujo FIRE (Various)
Shukushoubyou Kenshuu
[A-mania9's] BEHAVIOUR+17 ~BUNNY FLASH!!~[English][lodhel] (part 1)
Honey Flash Seven
(C93) [ARCHANGEL (Ayanokouji Haruka)] PRISMA FLASH (Fate/kaleid liner Prisma Illya)
[Cha Cha Cha Brothers (Yokoyama Chicha)] Harenchi (Various)
Hitsugi
FLASH BACK
(COMIC1☆9) [Kuma-tan Flash!, Eclipse (Hanao., Rougetu)] HELLO (Kantai Collection -KanColle-)
PRISMA FLASH
Underground Hotel Vol. 3
Omakebon 9
Sofia-san wa Kashikoi ♥
(C79) [Kuma-tan Flash! (Hanao)] Kuugeki no Sacrifice (Touhou Project)
(C89) [Kuma-tan Flash!, Eclipse (Hanao., Rougetu)] Se-no! (Kantai Collection -KanColle-)
Ashford Academy Underground
(C88) [Lithium (Uchiga)] Again #2 "Flashback Memories" (God Eater)
Underground Hotel Vol. 1
Chika Tougijou Sen - Underground Colosseum Sen 3
(C95) [Kuma-tan Flash! (Kumao Mofumofu)] BB Jealousy (Fate/Grand Order)
(C71) [Kensoh Ogawa (Fukudahda)] Ashford Gakuen Underground (Code Geass)
[Shiruka Bakaudon] Uramono Zasshi No Fan Wa Yahari Orokamono De Aru | Fans of Underground Magazines are Truly Fools (COMIC Mate Legend Vol. 15 2017-05) [English] [Digital]
(C85) [Kuma-tan Flash! (Hanao.)] Okuu to Kare no Hyouryuu Nikki (Touhou Project) [English]
Omake Book c94
(C71) [Kensoh Ogawa (Fukudahda)] Ashford Gakuen Underground (Code Geass) [Decensored]
(C61) [JUMBOMAX (Ishihara Souka)] NAJICA FLASH (Najica Blitz Tactics)
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 3 [English] [8/u/ Scanlations] [Digital]
[Ameya Kirica] Chichi Pri! [Chinese]
ELF SLAVE CATALOG UNDERGROUND Vol.02
Lost Desired
[sky & si-o] 罪世 - 第1章 | Tsumi Yo - Chapter 02 [EN]
FLASHBACK (Toriko)
(COMIC1☆10) [Kuma-tan Flash! (Hanao.)] Nee-sama no Inai Chinjufu (Kantai Collection -KanColle-)
[Zokubutsu.zip (Asuka)] Zokubutsu.zip (9) Chika | Underground [English] [Digital]
[UNDERGROUND CAMPAIGN (Muma, Senga Migiri)] Maison Liberté | Midsummer Daydream [English] [Leon990 Scanlations] [Digital]
[Hazuki Kaoru] Shuuchi no Yakata
Triglav Underground Railway
[ffkan]Underground Battle 5
(C88) [Jagabata (Oimo)] Miwaku no Red Flash | Fascinating Red Flash (PriPara) [English] {/u/ scanlations}
(C76) [Kazemichiya (Mamo Williams)] Flash Back (Touhou Project) [English]
The Impulsive Inseminator Uncle Lost in Old Hell (Touhou Project) [English]
(C61) [JUMBOMAX (Ishihara Souka)] NAJICA FLASH (Najica Blitz Tactics)
[Yameta Takashi] Ikenai Amane-san The Naughty Amane-san (COMIC Tenma 2013-06) [Chinese] [巨乳星人個人漢化]
Konya Sabishii Hinageshi wa
[TRAP (Urano Mami)] Honey Flash Seven (Cutey Honey F)
[Ryo] Tomodachi ni Nayami o Soudan Shite Mitara Ayashige na Basho ni Tsurete Koraremashita. | I went to my friend for advice but instead she took me to a shady underground club. (COMIC Tenma 2014-07) [English] =LWB=
Minami Underground
(C83) [Kuma-tan Flash! (Hanao.)] Mebius:gate (Touhou Project)
[RED RIBBON REVENGER] kuro
(Reitaisai 12) [Kuma-tan Flash! (Habara Meguru)] Momiji Hunter (Gensoukyou ni Tanetsuke Oji-san ga Yattekita YA-YA-YA) (Touhou Project) [English]
[Kuma-tan Flash!] 2008-2009 Matome Hon 1
[Sentou Kaiiki (o-tani)] Honey 7 Flash! (Cutey Honey)
(COMIC1☆9) [Kuma-tan Flash!, Eclipse (Hanao., Rougetu)] HELLO (Kantai Collection -KanColle-) [Chinese] [CE家族社]
(C92) [Kuma-tan Flash! (Kumao Mofumofu)] Yamakaze no Koto, Suki? (Kantai Collection -KanColle-)
Nee-sama no Inai Chinjufu
[ONEONE1 (Ahemaru)] Roshutsu Kaijin Flasher Girl ~Kyonyuu Sukeban Marimo AFTER EPISODE~ [Chinese] [不咕鸟汉化组] [Digital]
Chika Tougijou Sen - Underground Colosseum Sen 5
[Stranger_Underground Dou] Jigoku Ezu no Yoru
(C89) [Kuma-tan Flash! (Hanao.)] Yuuwaku no Harusame (Kantai Collection -KanColle-)
(C89) [Kuma-tan Flash!, Eclipse (Hanao., Rougetu)] Se-no! (Kantai Collection -KanColle-) [Chinese] [洨五個人漢化]
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 2 [English] [8/u/ Scanlations] [Digital]
(C82) [Araki Yuu] The Stoplight is Flashing (Kuroko no Basket)
Enkou Mor-san
Masaka Idol o Yogosu Tsumori Ja Nai Desu yo ne? Dame Producer
(Reitaisai 9) [Kuma-tan Flash!, Eclipse (Hanao., Rougetu)] KUMAlipse3 (Touhou Project) [English] [q91]
Chika Teien | Underground Garden
BB Jealousy
(C92) [Kuma-tan Flash!, Eclipse (Kumao Mofumofu, Rougetu)] Cupla (Kantai Collection -KanColle-)
Kondo mo, Mata FGO Chara no Cosplay Saremashita
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 2 [Chinese] [沒有漢化] [Digital]
(C74) [FLASH POINT (Aoi Takayuki)] 《0》
[Ranchiki (dotsuco)] Mesuochi Idol-kun | Feminizing Degeneration Idol-kun [English] [Nisor] [Digital]
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 3 [Digital]
Chika Tougijou Sen - Underground Colosseum Sen
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen [English] [Sexy Akiba Detectives] [Digital]
(C88) [Kuma-tan Flash! (Hanao.)] Akatsuki datte Shireikan no Osewa kurai Dekirundakara!! (Kantai Collection -KanColle-) [Chinese] [脸肿汉化组]
(C78) [Crazy9 (Ichitaka)] Alice in Underground (Ookami-san to Shichinin no Nakama-tachi) [English] {doujin-moe.us}
(C84) [Kuma-tan Flash! (Various)] Kanmusu Collection (Kantai Collection -KanColle-) [Chinese] [脸肿汉化组]
Futari no Nichiyoubi
(Reitaisai 12) [Kuma-tan Flash! (Nishimura Nike)] Remilia to Fushigi no HiAce | A Simmer of Remilia With a Mysterious HiAce (Touhou Project) [English]
Underground arena no sen
Mazu no Hoshikuzu | 魔都的星尘 act.1-2
(C88) [Lithium (Uchiga)] Again #2 "Flashback Memories" (God Eater) [English] [N04h]
(C83) [Kuma-tan Flash! (Hanao.)] OMAKE C83 (Touhou Project)
(Reitaisai 7) [Kuma-tan Flash! (Hanao)] Mebius:loop+Omake (Touhou Project)
Ashford Gakuen Underground
(Kouroumu 6) [Kuma-tan Flash! (Hanao)] Hanao no Mozomozo Rakugaki Chou Vol.1 (Touhou Project)
[Tsurikichi-Doumei (Various)] Oooka Nan DemoーR (Various)
[GADGET] jumping jack flash (Various)
(Kemoket 4) [Flash Point (Various)] PONY Love (My Little Pony Friendship is Magic) [Chinese]
(C81) [Kuma-tan Flash!] Scapegoat Act:2 (Touhou Project)
(C80) [Kuma-tan Flash!, Eclipse (Hanao., Rougetu)] KUMAlipse2 (Touhou Project)
(C90) [Kuma-tan Flash! (Hanao.)] Love Trip (Kantai Collection -KanColle-) [Chinese] [洨五個人漢化]
(Reitaisai 8) [French letter (Fujisaki Hikari)] Pedolia! underground (Touhou Project)
Again #2 "Flashback Memories"
(C90) [Kuma-tan Flash! (Hanao.)] Love Trip (Kantai Collection -KanColle-)
(Hyattou Ryouran ~Kimi no Heart o Shirahadori~) [RED FLASH (Maccha)] Koinyoubou Somewake Tazuna (Touken Ranbu)
Uramono Zasshi No Fan Wa Yahari Orokamono De Aru | Fans of Underground Magazines are Truly Fools
[Saiyazumi] Oneshota Champloo (Shukujo wa Ochinchin Busoku) [English] [flash11]
Sabbath wa Houkago, Chikashitsu de | The Sabbath happens after school, in the underground room
Alpha ga Alpha o Daku Houhou | α与α做爱的方法 1-6 完结
BEHAVIOUR+17 ~BUNNY FLASH!!~
(MILLION FESTIV@L 3) [Kuma-tan Flash! (Hanao.)] Masaka Idol o Yogosu Tsumori Ja Nai Desu yo ne? Dame Producer (THE IDOLM@STER MILLLION LIVE!)
[Amanoja9] BEHAVIOUR+17 ~BUNNY FLASH!!~
[Takotsubo Club (Gojou Shino)] Danger Zone 5 (Dirty Pair Flash)
[AB LABORATORY (NEW AB)] Aido 7 - Flash 7 (Dirty Pair Flash)
(C90) [Kuma-tan Flash! (Hanao.)] Love Trip (Kantai Collection -KanColle-) [English]
[Crimson (Carmine)] Yoru no Senritsu (Tokyo Underground)
(C95) [Kuma-tan Flash! (Kumao Mofumofu)] Lost Desired (Goblin Slayer)
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 3 [Chinese] [沒有漢化] [Digital]
Nee-sama no Inai Chinjufu
[LFM (Usagi)] Flashing Pink (Sakura Taisen)
[Nawanoren (Gachoon)] NNDP 9 (Dirty Pair Flash) [2017-12-31]
(C78) [Kuma-tan Flash! (Hanao)] Scapegoat Act: 1 (Touhou Project)
[Wawomidasu (Kyawashuku)] Mob Zerox 3 Blue & Purple (Battle Spirits) [Digital]
(C56) [AB Normal (NEW AB)] Aido 56789 Soushuuhen (Various)
Honey 7 Flash!
[Yoshitatsu Kiichigono] Flashbang! [ENG] Hi-res
[Nanase Makoto] Chika Ryuushutsu - Leaked to Underground
(Reitaisai 7) [Kuma-tan Flash! (Hanao)] Mebius:loop+Omake (Touhou Project) [English] [DesuDesu]
[Cyclone (Izumi Kazuya, Reizei)] Kagami ni Mukau Shoujo (Various) [Digital]
Inousha Shoujo Spin-off Yulia Hen | 異能者少女spinoff・尤利娅編
[Charie] Child Resolution (Iromeki Girls) [English] [Yuri-ism]
Himitsu no TS Chika Kenkyuujo | Secret TS Underground Lab