Udonge Onee-chan Hatsujouchuu!!
(C84) [Akuten Soushin (Kokutou Nikke)] Udonge Shussan Yakubutsu Choukyou | Udonge Childbirth Drug Training (Touhou Project) [English] =Ero Manga Girls=
Udonge, Ucchaimashita. | Selling Udonge
(Reitaisai 20) [Yodare Bunmei (Nekopoou)] Udonge Hatsujouchuu (Touhou Project)
(Reitaisai 15) [Satellites (Satetsu)] Udonge, Ucchaimashita. | Selling Udonge (Touhou Project) [English] {Doujins.com}
(C89) [Anmitsuyomogitei (Michiking)] Suwasete Kudasai Udonge-mama! | Let Me Suck On Them, Udonge-Mama! (Touhou Project) [English] [PSYN + Facedesk]
(Shuuki Reitaisai 4) [Denki Biribiri] Udonge Onee-chan Hatsujouchuu!! (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 14) [Inaka no Yasaiya (Hubrael)] Udonge Inn ni Youkoso - Welcome to UDONGE Inn!! (Touhou Project)
