(Suukeisai 1) [Kuma-tan Flash!, Z to A (Hanao., Soreko)] Koiji Romanesque (Touhou Project)
[Undergroundou] Tonde Hi ni Iru Natsu no Fundoshi Shounen
[ffkan]Underground Battle 5
(C69) [RED RIBBON REVENGER (Makoushi)] Valhalla ~ Dainishou~ Fuyu no Arashi (Spiral)
(C90) [Kuma-tan Flash! (Hanao.)] Love Trip (Kantai Collection -KanColle-) [English]
(C76) [Kuma-tan Flash! (Hanao)] Tube Rose (Touhou Project)
Chika Tougijou Sen - Underground Colosseum Sen 3
[Undergroundou] Himitsu no Mori e Youkoso - Welcome To The Secret Forest
(Houraigekisen! Yo-i! 2Senme!) [Kuma-tan Flash! (Hanao,Marugoshi,Wakura)] Kanmusu Collection Kai (Kantai Collection -KanColle-) [Chinese] [脸肿汉化组]
(C89) [CREAYUS (Rangetsu)] Flash Noise (Code Geass: Lelouch of the Rebellion) [English] [EHCove]
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 5 [Digital]
[Unknown] Chika Teien | Underground Garden [English]
(C89) [CREAYUS (Rangetsu)] FLASH NOISE (CODE GEASS: Lelouch of the Rebellion) [Chinese] [UAl汉化组]
[Ranchiki (dotsuco)] Mesuochi Idol-kun | Feminizing Degeneration Idol-kun [English] [Nisor] [Digital]
Chika Seikou Tougi Club | Underground Sex Fight Club
(Reitaisai 7) [Kuma-tan Flash! (Hanao)] Mebius:loop+Omake (Touhou Project)
[Makita Yoshiharu] Suteki na Kyuujitsu Shinkon (Miman) Hen | A Wonderful Holiday For Newlyweds (Trouble Scramble!) [English] [Kyuukei]
[Underground dou] Koushuu Benjo Shounen
(Mori no Kiseki 13) [Kuma-tan Flash! (Hanao.)] Pink Telepathy (Touhou Project)
[Stranger_Underground Dou] Jigoku Ezu no Yoru
(C76) [Dakimakuma, Jingai Makyou Club (WING☆BIRD)] CHARA EMU W☆BR006 FLASH BACK1984 P02 (Various)
Honey Flash Seven
[LFM (Usagi)] Flashing Pink (Sakura Taisen)
Under the Table [English] [Rewrite] [EZ Rewriter]
[sky & si-o] 罪世 - 第1章 | Tsumi Yo - Chapter 02 [EN]
Minami Underground
[Takotsubo Club (Gojou Shino)] Danger Zone 5 (Dirty Pair Flash)
(CR35) [Nawanoren (Gachoon)] NNDP Plus (Dirty Pair)
V Tsumamigui
Chika Tougijou Sen - Underground Colosseum Sen 5
【隼素良】欠損玩具の行く末 (Yu-Gi-Oh! Arc-V) (chinese)
(C97) [Shimofutaketa Zorome (Ahou Miya)] Theater Drama City (Deep Web Underground) [English] {Hennojin}
(C88) [Lithium (Uchiga)] Again #2 "Flashback Memories" (God Eater)
Hakoiri Ninja Gaiden Emaki
KNight Mare Underground ~Shimai Kishi, Kanraku Dungeon~ ch. 2
(C49) [H&K (Various)] Ero Manga Kenkyuujo FIRE (Various) [Incomplete]
Masaka Idol o Yogosu Tsumori Ja Nai Desu yo ne? Dame Producer
(C85) [Dakimakuma, Jingai Makyou Club (Wing Bird)] CHARA EMU W☆BR010 FLASHBACK 1983 P01 (Various)
Vtuber Sokuhame Kairaku Ochi Hon
Sepia Flash
(C84) [Kuma-tan Flash! (Various)] Kanmusu Collection (Kantai Collection -KanColle-)
(C90) [Kuma-tan Flash! (Hanao.)] Love Trip (Kantai Collection -KanColle-) [Chinese] [洨五個人漢化]
(C94) [Yatsukaan (Yatsuka Yuhata)] Minami Underground (THE IDOLM@STER CINDERELLA GIRLS)
(C89) [CREAYUS (Rangetsu)] FLASH NOISE (CODE GEASS: Lelouch of the Rebellion)
Sonna ni Kirei Janakute Ii | 不用那么美丽也可以 Ch. 1
FLASH BACK 20081230
(C80) [Kuma-tan Flash!, Eclipse (Hanao., Rougetu)] KUMAlipse2 (Touhou Project) [English] {LWB}
Inbou Kyousei Kairaku Esute Zenpen | Underground Forced Pleasure Salon Part 1
(C62) [C's cheese (Hebimaki Qto)] Nibun no Ichi no Gimai (Tokyo Underground)
(C52) [Nawanoren (Shimizu Kiyoshi)] NN GACHOON (Various)
(C86) [Kuma-tan Flash! (Hanao.)] 2008-2011 Matomebon 3 (Touhou Project) [Incomplete]
(C71) [Kensoh Ogawa (Fukudahda)] Ashford Gakuen Underground (Code Geass) [English] [0405]
NAJICA FLASH
[Fractal Underground Studio] Kodomo Rakuen Ransel Shoujo Hen
Roshutsu Wakazuma Kikiippatsu! - Flashing wives!
(Reitaisai 11) [Kuma-tan Flash! (Hanao.)] concern (Touhou Project)
(C75) [Eclipse, Kuma-tan Flash! (Rougetu, Hanao.)] Jarekko Doubutsu (Touhou Project) [Incomplete]
(C86) [HMA, KumatanFlash! (Hiyoshi Hana, Hanao.)] immoral (Kantai Collection -KanColle-)
Straylight Porno + OMAKE BOOK C96
[TRAP (Urano Mami)] Honey Flash Seven (Cutey Honey F)