(Reitaisai 14) [Inaka no Yasaiya (Hubrael)] Udonge Inn ni Youkoso - Welcome to UDONGE Inn!! (Touhou Project)
(Reitaisai 15) [Kouzan Dasshu de Soku Bakuha. (Various)] Eiyashou Tsukimiyako Gumi Ero Trap Dungeon Goudou (Touhou Project)
(SC28) [Toutaku Engadou (Kaoru Suguru)] touhou sou nama jijou kai (Touhou Project)
(Reitaisai 7) [Shimoyakedou (Ouma Tokiichi)] Eirin no Kusuri de Udonge ga Hidoi Meniau Hon | Terrible things happen to Udonge due to Eirin's drugs Book (Touhou Project) [English]
(Reitaisai 15) [Satellites (Satetsu)] Udonge, Ucchaimashita. | Selling Udonge (Touhou Project) [English] {Doujins.com}
[Toutaku Houga-Dou]Marisa's Circumstances{Touhou Project}
[Toutaku Houga-Dou]Touhou Futa Circumstances{Touhou Project}
[Toutaku Houga-Dou]Touhou Shunga-chou ver.2{Touhou Project}
(C84) [Akuten Soushin (Kokutou Nikke)] Udonge Shussan Yakubutsu Choukyou | Udonge Childbirth Drug Training (Touhou Project) [English] =Ero Manga Girls=
[Akitaku Kikaku (Taku Hiraku)] Ousama to Boku
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