(C94) [Yatsukaan (Yatsuka Yuhata)] Minami Underground (THE IDOLM@STER CINDERELLA GIRLS)
Chika Tougijou Sen - Underground Colosseum Sen 5
Chika 30m no Mitsugetsu o... | Honeymoon at 30 meters underground
(C86) [Gekidoku Shoujo (ke-ta)] Underground Blossom (Touhou Project)
[Fractal Underground Studio] Pantsu Kuronikuru
[TLG (bowalia)] Chika Tougijou Sen - Underground Colosseum Sen 2 [English] [8/u/ Scanlations] [Digital]
(CR34) [PLANET PORNO (Yamane)] HATE CAMPAIGN (Kino no Tabi)
(C92) [Fatalpulse (Asanagi)] VictimGirls R Chikan Bokumetsu Campaign [Chinese] [無毒漢化组]
Chika Tougijou Sen - Underground Colosseum Sen 4
Theater Drama City
(C62) [C's cheese (Hebimaki Qto)] Nibun no Ichi no Gimai (Tokyo Underground)
[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]
V Tsumamigui
Omakebon 9
[SaHa] Fractal Underground - Warm Kotatsu (English)