Doukutsu no Okusoko [かもめの食道 (ごはんのおとも)] 洞窟の奥底

[Uragiri no Doukutsu (Hiro)] Dark Make up (Sailor Moon) [English] [SaHa]

(SC46) [Kurai Mori no Okusoko de (Hidematsu)] Souda, Nankyou e Ikou | Let's Go to Antarctica (Shin Megami Tensei Strange Journey) [English] [Rabbit]

[Uragiri no Doukutsu (Hiro)] Dark Make up (Sailor Moon)

[Cyclone (Reizei, Izumi)] STAR TAC IDO ~Youkoso Haja no Doukutsu e~ Ch. 0-2 (Dragon Quest Dai no Daibouken) [English]

[Ikennabi (Iken)] Zetsubou no Doukutsu III Kouhen

[Takatsu] Kuraku Shimetta Doukutsu de | In a Dark, Damp Cave (COMIC MILF 2017-04 Vol. 35) [English] [Happymerchants] [Digital]

[Ikennabi (Iken)] Zetsubou no Doukutsu III Zenpen

(C71) [Uragiri no Doukutsu (hiro)] MC Heroines 1 Marou no Taidou (Seiken Densetsu 3) [Chinese] [这很恶堕汉化组]

[Watanabe Tou (Watanabe Kenpo)] Butaningen no Doukutsu Zenpen

[Watanabe Tou (Watanabe Kenpo)] Butaningen no Doukutsu Kouhen