(CT21) [Yuuen Floor (Keishiki)] Soto no Sekai wa Kowai (Touhou Project)
Triglav Underground Railway
Albino Sakura-chan to Ama Ecchi
Chika Tougijou Sen - Underground Colosseum Sen 2
(C94) [Yatsukaan (Yatsuka Yuhata)] Minami Underground (THE IDOLM@STER CINDERELLA GIRLS)
(C90) [Kikyakudou (Karateka Value)] The Sarasa of Ground Zero (Granblue Fantasy)
Lonely Playground 1-9
Muryoru Kangoku | The Swarm Approaches the Wicked Prison
[CRIMSON GROUND (Miyashiro Sousuke)] KAEDESAN MAJI GODDESS Plus + (THE IDOLM@STER CINDERELLA GIRLS) [English] [WWW] [Digital]
Vtuber Sokuhame Kairaku Ochi Hon 2
[Nanase Makoto] Chika Ryuushutsu - Leaked to Underground
[Undergroundou] Haru no Shura - Seifuku Shounen to Geshuku Daigakusei no Ikenai Kankei -
[Rinsun] KNight Mare Underground ~Shimai Kishi, Kanraku Dungeon~ ch. 2
(C91) [CRIMSON GROUND (Miyashiro Sousuke)] Tenryuu-gata no Nee-san-tachi to Kannetsu no Hokyuu (Kantai Collection -KanColle-)
(Kouroumu 10) [Yuuen Floor (Keishiki)] Shokushu no Minamoto (Touhou Project)
[Arou Rei] F no Megami - Ge (Floor Venus)
Sanranbasho wa Uchuu Pilot | Spawning Ground Space Pilots
Chika Tougijou Sen - Underground Colosseum Sen 4
(C67) [GROUND-Zero (Inui)] Meikyou Shisui (Touhou Project)
Uramono Zasshi No Fan Wa Yahari Orokamono De Aru | Fans of Underground Magazines are Truly Fools
[Aomizuan (Shimantogawa)] Geneki Joshidaisei to, Iyarashii Donkatsu (PlayerUnknown's Battlegrounds) [Ongoing]
(C85) [Pettanko! (0-G)] Ily☆Kuro-san Chi no Jika Hatsuden to Ero Jijou (Fate/kaleid liner Prisma Illya)
Chika Tougijou Sen - Underground Colosseum Sen 2
Devil's Playground
[青水庵、四万十川、準社員井上] 現役女子大生と、いやらしいドン勝 [Ongoing]
[Yuuen Floor (Keishiki)] Youseiten (Touhou Project) [Digital]
(C83) [Tricot (Stella.Ing)] From the Underground (The Legend Of Zelda)
(C78) [Crazy9 (Ichitaka)] Alice in Underground (Ookami-san to Shichinin no Nakama-tachi)
(C80) [CRIMSON GROUND (Miyashiro Sousuke)] Mamitte Finale (Puella Magi Madoka Magica) [English] [CGrascal]
(Kouroumu 12) [Yuuen Floor (Keishiki)] Aya-chan Osewa Shimasu (Touhou Project)
Sawari Tsukuse Manin Densha!
[Red Ribbon Revenger] Valhalla ~Joshou~ (Tokyo Underground & Spiral)
Underground arena no sen
[UNDERGROUND CAMPAIGN (Muma, Senga Migiri)] Maison Liberté | Midsummer Daydream [English] [Leon990 Scanlations] [Digital]
Konya wa Girl's Bar Heiten Shimasu.
Theater Drama City
V Tsumamigui
(COMIC1☆5) [CRIMSON GROUND (Miyashiro Sousuke)] Schwarzer Rafale (Infinite Stratos)
[Makio] Hot Ice (Comic lo 2014-03) [English] {5 a.m.}
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 5 [Chinese] [沒有漢化] [Digital]
Vtuber Sokuhame Kairaku Ochi Hon
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 2 [Digital]
Can't go back!
[Inspiration Floor (Non-Sugar)] mylover009/010/012 (Triggerheart Exelica)
PRETTYUNKNOWN'S BATTLEGROUNDS
[Crazy Clover Club 07] Rikujyou Bouei Tai! Mao-chan - Riku-mao Complex
DEEP BLACK
(C84) [CRIMSON GROUND (Miyashiro Sousuke)] Houmatsu Mugen (THE iDOLM@STER CINDERELLA GIRLS) [English] [WWW]
(C78) [Crazy9 (Ichitaka)] Alice in Underground (Ookami-san to Shichinin no Nakama-tachi) [English] {doujin-moe.us}
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 4 [Chinese] [沒有漢化] [Digital]
(Reitaisai 8) [French letter (Fujisaki Hikari)] Pedolia! underground (Touhou Project)
Man♡Piku
Underground Athlete Maker
]NUDEGIRL | 超裸女
[ground-k (Kaneda)] Kyou no Ounou (Durarara!!)
[Fractal Underground Studio] Himitsu no Basho | Secret Place [English] [SaHa]
Boshi Chika Resort | Mother and Son Underground Resort