(C69) [RED RIBBON REVENGER (Makoushi)] Valhalla ~ Dainishou~ Fuyu no Arashi (Spiral) [Digital]
[GENOCIDE (Hattori Gorou)] S4U spats forever The UNDERGROUND insert SATONAKA CHIE (PERSONA 4) [Digital]
(COMIC1*03) [HGH (HG Chagawa)] CrossinG KnightmarE - Kegare Yuku Seijo-tachi e no Sanka -
Chika 30m no Mitsugetsu o... | Honeymoon at 30 meters underground
(Puniket 20) [Chronolog, Shoujo Zukin (Sakurazawa Izumi, Hatomugi Munmun)] Alice in the underground (Soul Eater)
Himitsu Yuugi | 비밀유희
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 3 [Chinese] [沒有漢化] [Digital]
From The Underground
[Abura Katabura (Papipurin)] Midgar Underground Capter 1: Tifa Haidaku Nyuumetsu (Final Fantasy VII)
Nodokan
(Underground Carnival) [Inyu-goya (Inyucchi)] Chitei no Yakata no Aigan Shoujo (Touhou Project)
CrossinG KnighTMarE ThE SacreD BooK2
Himitsu no TS Chika Kenkyuujo | Secret TS Underground Lab
(C88) [KI-SofTWarE (Various)] CrossinG KnighTMarE ThE SacreD BooK 3
(C86) [KI-SofTWarE (Neromashin)] Kachiku Ochi | Degraded to Livestock (CrossinG KnighTMarE ThE SacreD BooK2) [English] [desudesu]
Underground
Theater Drama City
Chika Tougijou Sen - Underground Colosseum Sen 5
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 4 [Chinese] [沒有漢化] [Digital]
Triglav Underground Railway
Vtuber Sokuhame Kairaku Ochi Hon
Vtuber Sokuhame Kairaku Ochi Hon 2
Hatsukoi wa Jukusei Sasete
(C87) [Yamaneko Jinja (John Inu)] Journey Into Underground (Touhou Project)
(C71) [ARESTICA, D.N.A.Lab. (Ariko Youichi, Miyasu Risa)] Velvet Underground (Sumomomo Momomo)
[Fractal Underground Studio] Himitsu no Basho | Secret Place [English] [SaHa]
[Nanase Makoto] Chika Ryuushutsu - Leaked to Underground
[Unknown] Chika Teien | Underground Garden [Chinese]
KNight Mare Underground ~Shimai Kishi, Kanraku Dungeon~ ch. 2
Otokonoko ga Futanari JK DeliHeal o Yondara Byou de Mesu Ochi shichaimashita.
Maso no Keifu
[Stranger_Underground Dou] Jigoku Ezu no Yoru
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen [Chinese] [沒有漢化] [Digital]
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen [Digital]
Knightmare Apocrypha ~Prison of Flesh~
Chika Tougijou Sen - Underground Colosseum Sen 1
Underground Hotel ~Cross Over~
Kono Watakushi ga Saimin ni Makeru Wake Arimasen wa!
(C78) [Crazy9 (Ichitaka)] Alice in Underground (Ookami-san to Shichinin no Nakama-tachi)
[Underground Dou (Stranger)] Jigoku Ezu no Yoru 2
Illustration
(C84) [Heavy Bunny Addiction (Usagi Nagomu)] THE BROKEN KNIGHTMARE [Chinese] [空気系☆漢化]
Kenryokusha ni Sakaraezu 2-koma Ochisuru Hon
(Underground Carnival) [Kougeki (Ootsuki Wataru)] Speechless (Touhou Project)
[Underground Dou] NOPOR
土方口マンホール 鳶編
Hitsugi
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 4 [Digital]
[Underground dou] Koushuu Benjo Shounen
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 3 [English] [8/u/ Scanlations] [Digital]
Zecchou CONTRACT
[Zokubutsu.zip (Asuka)] Zokubutsu.zip (9) Chika | Underground [English] [Digital]
Sabbath wa Houkago, Chikashitsu de | The Sabbath happens after school, in the underground room
[Undergroundou] Haru no Shura - Seifuku Shounen to Geshuku Daigakusei no Ikenai Kankei -
Mazu no Hoshikuzu | 魔都的星尘 act.1-2
(C62) [C's cheese (Hebimaki Qto)] Nibun no Ichi no Gimai (Tokyo Underground)
NOT JAP
[SaHa] Fractal Underground - Warm Kotatsu (English)
Sofia-san wa Kashikoi ♥
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 2 [Chinese] [沒有漢化] [Digital]
CrossinG KnighTMarE ThE SacreD BooK 4
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 5 [Chinese] [沒有漢化] [Digital]
Konya wa Girl's Bar Heiten Shimasu.
(C86) [KI-SofTWarE (Various)] CrossinG KnighTMarE ThE SacreD BooK2
Chika Tougijou Sen - Underground Colosseum Sen 2
[Underground Campaign (Senga Migiri, jin)] Dokata Kuchiman Hole - Tobi Hen
[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]
Buchou to Kachou | 部长与课长 1-3
[Undergroundou] Tonde Hi ni Iru Natsu no Fundoshi Shounen
(C69) [Okinawa Taieki Gunjinkai] Rynax_Underground (Kurau : Phantom Memory)
Chika Seikou Tougi Club | Underground Sex Fight Club
Chika Tougijou Sen - Underground Colosseum Sen 4
Underground Hotel Vol. 2
S to M to M to S
[Crimson (Carmine)] Yoru no Senritsu (Tokyo Underground)
CrossinG KnightmarE - Kegare Yuku Seijo-tachi e no Sanka -
[Yui Toshiki] ReYui Vol.3
Futari no Nichiyoubi
Watashi ga Maketara Nandemo Iu Koto Kiite Ageru
(C94) [Yatsukaan (Yatsuka Yuhata)] Minami Underground (THE IDOLM@STER CINDERELLA GIRLS)
(C79) [HGH, KI-SofTWarE (HG Chagawa, Kiken Shisou)] CrossinGKnighTMarE IdeaNOTE SP2
[HG Chagawa] Chika Dorei No. 6 - Underground Slave No. 6 (ANGEL Club 2015-01) [English] [desudesu]
Uramono Zasshi No Fan Wa Yahari Orokamono De Aru | Fans of Underground Magazines are Truly Fools
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 3 [Digital]
Underground Six
Sawari Tsukuse Manin Densha!
(C78) [bolze. (rit.)] The Sunshine Underground (Heart Catch Precure)