[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 3 [English] [8/u/ Scanlations] [Digital]
Flower Attack Moonlight
[Crimson (Carmine)] Yoru no Senritsu (Tokyo Underground)
[Abura Katabura (Papipurin)] Midgar Underground Capter 1: Tifa Haidaku Nyuumetsu (Final Fantasy VII)
Butakan Magician Girl DESCAVELLADOHEN]
Ningen wa Oroka | Humans Are Foolish
Ashford Gakuen Underground
Snow cave/Cueva helada
(C77) [Cave (Hachi)] Sakuya-san no Otanoshimi Time (Touhou Project)
Sofia-san wa Kashikoi ♥
(C69) [RED RIBBON REVENGER (Makoushi)] Valhalla ~ Dainishou~ Fuyu no Arashi (Spiral)
[Unknown] Chika Teien | Underground Garden [English]
[Cave Bear] Mia's Tool Ch.0 (English) (Ongoing)
Chika Seikou Tougi Club | Underground Sex Fight Club
(C96) [SILENT HILL (Morisoba)] NOT JAP (Deep Web Underground) [English] {Hennojin}
リトルウィッチの恋
(Underground Carnival) [Inyu-goya (Inyucchi)] Chitei no Yakata no Aigan Shoujo (Touhou Project)
[Stranger_Underground Dou] Jigoku Ezu no Yoru
Underground Athlete Maker
[Undergroundou] Seiyoku Bakuhatsu Shounen Vol. 3 -Sex Sense-
V Tsumamigui
[U.M.E.Project (ukyo_rst)] ELF SLAVE CATALOG UNDERGROUND Vol.02 [Digital]
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 5 [Chinese] [沒有漢化] [Digital]
Vtuber Sokuhame Kairaku Ochi Hon
[Bai Asuka] Boku no Kaa-san wa Yuujin no Mesuinu Ch. 1-3 [English] [biribiri]
Theater Drama City
Sabbath wa Houkago, Chikashitsu de | The Sabbath happens after school, in the underground room
[Bear's Cave (Tagame Gengoroh)] Jubaku no Seiyatsu - Khoz, The Spellbound Slave [Digital]
With Cavemen
Kono Watakushi ga Saimin ni Makeru Wake Arimasen wa!
[ffkan]Underground Battle 5
土方口マンホール 鳶編
[Red Ribbon Revenger] Valhalla ~Joshou~ (Tokyo Underground & Spiral)
(Osuket 2) [UNDERGROUND CAMPAIGN (Senga Migiri, jin)] Yasei
Uramono Zasshi No Fan Wa Yahari Orokamono De Aru | Fans of Underground Magazines are Truly Fools
(C71) [Kensoh Ogawa (Fukudahda)] Ashford Gakuen Underground (Code Geass)
[RED RIBBON REVENGER (Makoushi, Takatoo Juna)] Shiro (Spiral, Tokyo Underground)
Minami Underground | 미나미 언더그라운드
[Undergroundou] Underground Natural Klutz Orgasm VI
[Bear's Cave (Tagame Gengoroh)] Jubaku no Seiyatsu - Khoz, The Spellbound Slave [Chinese] [黑夜汉化组] [Digital]
[Yuriwhale] Merry Christmas 2017! AkkoxDiana (Little Witch Academia)
[Hoshiai Hiro] Ketsu no Naka de | Inside the Cave [English]
Inbou Kyousei Kairaku Esute Zenpen | Underground Forced Pleasure Salon Part 1
(C95) [Kami No Misosiru (Ono Misao)] Mash ga Event de Neteru Senpai ni Itazura Suru Hon | Book About Mashu Molesting Senpai Who Is Sleeping Due to an Event (Fate/Grand Order) [English] [Cave Translations]
(C71) [Kensoh Ogawa (Fukudahda)] Ashford Gakuen Underground (Code Geass) [English] [0405]
(C89) [Yamaneko Jinja (John Inu)] UNDERGROUND ASCENDANCY (Touhou Project)
(C71) [Kensoh Ogawa (Fukudahda)] Ashford Gakuen Underground (Code Geass) [Decensored]
[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]
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 2 [Digital]
[Magukappu (Magukappu)] Dai Akko (Little Witch Academia) [English]
Chika Tougijou Sen - Underground Colosseum Sen