(C76) [Kuma-tan Flash! (Hanao)] Tube Rose (Touhou Project)
[TRAP (Urano Mami)] Honey Flash Seven (Cutey Honey F)
(C95) [Ukatsu de wa Nai (noukatu, Minase Kuru)] Vtuber Sokuhame Kairaku Ochi Bon (Tsukino Mito, Deep Web Underground, Shizuka Rin)
From The Underground
(C77) [Flash Point (Aoi Takayuki)] Natsu Shounen - Summer Boy (Summer Wars)
[ffkan]Underground Battle 5
Hitsugi
(C87) [Kuma-tan Flash! (Various)] Hamedori Collection (Kantai Collection -KanColle-)
(C97) [54BURGER, Eclipse, Kuma-tan Flash! (Kumao Mofumofu, Marugoshi, rougetu)] Otona o Karakau n ja nai! (Fate/Grand Order) [Chinese] [脸肿汉化组]
(C47) [Mengerekun, VETO (Captain Kiesel, ZOL)] Flash Back (Dirty Pair Flash)
(COMIC1☆10) [Kuma-tan Flash! (Hanao.)] Nee-sama no Inai Chinjufu (Kantai Collection -KanColle-)
(Reitaisai 7) [Frac (Mitsuki)] Midnight / Flashlight (Touhou Project)
(C48) [Studio Katsudon (Manabe Joji)] Kyouetsu Shigoku (Various)
[Saiyazumi] Oneshota Champloo (Shukujo wa Ochinchin Busoku) [English] [flash11]
Underground Hotel Vol. 1
[Ameya Kirica] Chichi Pri! [Chinese]
(C49) [H&K (Various)] Ero Manga Kenkyuujo FIRE (Various)
Menhera Usagi to Pet no Alpaca o Mofumofu Shichau Hon
[Rinsun] KNight Mare Underground ~Shimai Kishi, Kanraku Dungeon~ ch. 2
[Underground Dou (Stranger)] Jigoku Ezu no Yoru 2
V Tsumamigui
(Mori no Kiseki 13) [Kuma-tan Flash! (Hanao.)] Pink Telepathy (Touhou Project)
Inousha Shoujo Spin-off Yulia Hen | 異能者少女spinoff・尤利娅編
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 2 [Chinese] [沒有漢化] [Digital]
[Wawomidasu (Kyawashuku)] Mob Zerox 3 Blue & Purple (Battle Spirits) [Digital]
BB Jealousy
Underground Six
[Nanase Makoto] Chika Ryuushutsu - Leaked to Underground
[Charie] Child Resolution (Iromeki Girls) [English] [Yuri-ism]
Chika Tougijou Sen - Underground Colosseum Sen
(C94) [Kuma-tan Flash! (Kumao Mofumofu)] Omake Book C94 (Fate/Grand Order)
Shinso Makou Shoujo THE COMIC White Holy Sword Rizuve and Red Flash Raiza Episode 3
[Takotsubo Club (Gojou Shino)] Danger Zone 5 (Dirty Pair Flash)
(C89) [Kuma-tan Flash!, Eclipse (Hanao., Rougetu)] Se-no! (Kantai Collection -KanColle-)
Chika Tougijou Sen - Underground Colosseum Sen 2
(C88) [Jagabata (Oimo)] Miwaku no Red Flash (PriPara)
[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]
[Harazaki Takuma] SEARCH
FLASH BACK
[Yui Toshiki] ReYui Vol.3
(Reitaisai 9) [Kuma-tan Flash!, Eclipse (Hanao., Rougetu)] KUMAlipse3 (Touhou Project) [English] [q91]
[Undergroundou] Buta Moyashi
Chika 30m no Mitsugetsu o... | Honeymoon at 30 meters underground
(C78) [Kuma-tan Flash! (Hanao)] Scapegoat Act: 1 (Touhou Project)
[Studio Z-Agnam (Azuma Kyouto)] HONEY FLASH! 1 (Cutey Honey)
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 5 [Chinese] [沒有漢化] [Digital]
(C82) [Kuma-tan Flash!] Hanao no Mozomozo Rakugaki Chou Vol.3 (Touhou Project)
(SPARK8) [Radistar (157)] Triglav Underground Railway (Tales of Xillia)
[Undergroundou] Haru no Shura - Seifuku Shounen to Geshuku Daigakusei no Ikenai Kankei -
(C89) [Yamaneko Jinja (John Inu)] UNDERGROUND ASCENDANCY (Touhou Project)
(C78) [Akai Maruboro] Mio-jou ni eroime ni Attemoraou Tokusei Tadaku Flash Paper (K-On)
Alpha ga Alpha o Daku Houhou | α与α做爱的方法 1-6 完结