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)
Muryoru Kangoku | The Swarm Approaches the Wicked Prison
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
Chika Tougijou Sen - Underground Colosseum Sen 4
Uramono Zasshi No Fan Wa Yahari Orokamono De Aru | Fans of Underground Magazines are Truly Fools
Chika Tougijou Sen - Underground Colosseum Sen 2
(C83) [Tricot (Stella.Ing)] From the Underground (The Legend Of Zelda)
(C78) [Crazy9 (Ichitaka)] Alice in Underground (Ookami-san to Shichinin no Nakama-tachi)
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.
[ffkan]Underground Battle 5
Theater Drama City
V Tsumamigui
[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!
(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)
Underground Athlete Maker
]NUDEGIRL | 超裸女
[Fractal Underground Studio] Himitsu no Basho | Secret Place [English] [SaHa]
Boshi Chika Resort | Mother and Son Underground Resort
Theater Drama City
Omakebon 9
Vtuber Sokuhame Kairaku Ochi Hon 2
[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=
Futari no Nichiyoubi
[Zokubutsu.zip (Asuka)] Zokubutsu.zip (9) Chika | Underground [English] [Digital]
Chika Tougijou Sen - Underground Colosseum Sen
[Ukatsu de wa Nai (noukatu, Minase Kuru)] Vtuber Sokuhame Kairaku Ochi Hon (DeepWebUnderground, Tsukino Mito, Shizuka Rin) (English) (Pangean) [Digital]
[Yanagi Masashi] Kawai onna to yobaretai
[AliceComplex (Naganohara Nis)] Alice in Underground
(C62) [C's cheese (Hebimaki Qto)] Nibun no Ichi no Gimai (Tokyo Underground)
[RED RIBBON REVENGER (Makoushi, Takatoo Juna)] Shiro (Spiral, Tokyo Underground)
(C95) [Ukatsu de wa Nai (noukatu, Minase Kuru)] Vtuber Sokuhame Kairaku Ochi Bon (Tsukino Mito, Deep Web Underground, Shizuka Rin)
(C86) [Gekidoku Shoujo (ke-ta)] Underground Blossom (Touhou Project)
Minami Underground
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 2 [English] [8/u/ Scanlations] [Digital]
[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]
Flower Attack Moonlight
(C71) [ARESTICA, D.N.A.Lab. (Ariko Youichi, Miyasu Risa)] Velvet Underground (Sumomomo Momomo)
Rinjin no bitchi hitodzuma o tsugō yoku bu~tsuokasu!
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 5 [Chinese] [沒有漢化] [Digital]
Kenryokusha ni Sakaraezu 2-koma Ochisuru Hon
Buchou to Kachou | 部长与课长 1-3
Underground Hotel Vol. 2