Nodokan
(C47) [Mengerekun, VETO (Captain Kiesel, ZOL)] Flash Back (Dirty Pair Flash)
[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]
[Nawanoren (Gachoon)] NNDP 9 (Dirty Pair Flash) [2017-12-31]
[Ukatsu de wa Nai (noukatu, Minase Kuru)] Vtuber Sokuhame Kairaku Ochi Hon (DeepWebUnderground, Tsukino Mito, Shizuka Rin) (English) (Pangean) [Digital]
Underground Hotel Vol. 1
(CR35) [Nawanoren (Gachoon)] NNDP Plus (Dirty Pair)
(C75) [Eclipse, Kuma-tan Flash! (Rougetu, Hanao.)] Jarekko Doubutsu (Touhou Project)
(Reitaisai 8EX) [Kuma-tan Flash!, HMA (Hanao., Hiyoshi Hana)] Fundoshi Nyoumu - Youmu * Ji Ki Fukkatsu Omedetou Hon - | Fundoshi Nyoumu - A Book Celebrating Youmu's Return as a Playable Character [English] [desudesu]
(C87) [Kuma-tan Flash! (Various)] Hamedori Collection (Kantai Collection -KanColle-)
[Charie] Child Resolution (Iromeki Girls) [English] [Yuri-ism]
(C84) [Kuma-tan Flash! (Various)] Kanmusu Collection (Kantai Collection -KanColle-)
The Impulsive Inseminator Uncle Lost in Old Hell (Touhou Project) [English]
[ IZUMIYA (Teshigotoya Yoshibee, Sen fuji kaiko) ] FLASH BACK 2 (Doraemon)
[Shirogoma Rai] Mayonaka no Shainkyouiku
Chika Tougijou Sen - Underground Colosseum Sen 4 | 지하투기장 센4
Chuppon Onna no Vacuum Fella | 吸精淫亂女的吸引奉仕
[Nakamura Yukitoshi] Underground Athlete Maker (2D Comic Magazine Kikaikan Ningen Bokujou Vol. 2) [English] [Digital]
[HG Chagawa] Chika Dorei No. 6 - Underground Slave No. 6 (ANGEL Club 2015-01) [English] [desudesu]
(C61) [JUMBOMAX (Ishihara Souka)] NAJICA FLASH (Najica Blitz Tactics)
[Unknown] Chika Teien | Underground Garden [Chinese]
Vtuber Sokuhame Kairaku Ochi Hon
SSSS.GRIDMAN 超全集
(C80) [Eclipse, Kuma-tan Flash! (Rougetu, Hanao.)] Bukkake! Seieki Benjo (Touhou Project)
Shinso Makou Shoujo THE COMIC White Holy Sword Rizuve and Red Flash Raiza Episode 2
Makafushigi Toumei Ojisan
Albino Sakura-chan to Ama Ecchi
Underground Hotel Vol. 3
[Cha Cha Cha Brothers (Yokoyama Chicha)] Harenchi (Various)
Roshutsu Kaijin Flasher Girl ~Kyonyuu Sukeban Marimo AFTER EPISODE~
(C88) [Lithium (Uchiga)] Again #2 "Flashback Memories" (God Eater) [English] [N04h]
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 2 [English] [8/u/ Scanlations] [Digital]
(C79) [Kuma-tan Flash! (Hanao)] Kuugeki no Sacrifice (Touhou Project)
[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=
Lost Desired
[Sajipen] Midara ni Ochite (COMIC Shitsurakuten 2015-01) [Chinese] [無邪気漢化組]
(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]
From The Underground
Shinso Makou Shoujo THE COMIC White Holy Sword Rizuve and Red Flash Raiza Episode 3
(Reitaisai 10) [Kuma-tan Flash! (Hanao.)] Muishiki no Kyuuai Koudou (Touhou Project)
Underground Hotel ~Cross Over~
[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]
(C82) [Kuma-tan Flash! (Hanao.)] 2010-2011 Matome Bon 2 (Touhou Project)
Chika Seikou Tougi Club | Underground Sex Fight Club
(Kouroumu 6) [Kuma-tan Flash!, Eclipse (Various)] Touhou LoliBitch Goudou (Touhou Project)
(CR21) [Rocket Kyoudai (Various)] HONEY FLASH (Cutey Honey, Mega Man)
(C49) [H&K (Various)] Ero Manga Kenkyuujo FIRE (Various) [Incomplete]
Enkou Mor-san
(Reitaisai 7) [Frac (Mitsuki)] Midnight / Flashlight (Touhou Project) [English]
[RED RIBBON REVENGER (Makoushi, Takatoo Juna)] Shiro (Spiral, Tokyo Underground)
[UNDERGROUND CAMPAIGN (Senga Migiri)] USHI to KOBUSHI [Chinese] [同文城] [Digital]
(C89) [Yamaneko Jinja (John Inu)] UNDERGROUND ASCENDANCY (Touhou Project)
BEHAVIOUR+17 ~BUNNY FLASH!!~
(C80) [Kuma-tan Flash!, Eclipse (Hanao., Rougetu)] KUMAlipse2 (Touhou Project)
[Stapspats (Hisui)] Shinso Makou Shoujo THE COMIC White Holy Sword Rizuve and Red Flash Raiza Episode 3
Ashford Academy Underground
土方口マンホール 鳶編