(Reitaisai 14) [Inaka no Yasaiya (Hubrael)] Udonge Inn ni Youkoso - Welcome to UDONGE Inn!! (Touhou Project)

(Reitaisai 15) [Satellites (Satetsu)] Udonge, Ucchaimashita. | Selling Udonge (Touhou Project) [English] {Doujins.com}

(Reitaisai 14) [Haitokukan] Touhou Lynch 1 Choushi ni Norisugita Udonge-chan (Touhou Project) [Chinese] [CE幻想夏结社xKanade汉化组]

(Shuuki Reitaisai 4) [Denki Biribiri] Udonge Onee-chan Hatsujouchuu!! (Touhou Project)

(Reitaisai 15) [Satellites (Satetsu)] Udonge, Ucchaimashita. | Selling Udonge (Touhou Project) [English] {Doujins.com}

Udonge Onee-chan Hatsujouchuu!!

(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]

Udonge Hatsujouchuu

(Shuuki Reitaisai 3) [Nagiyamasugi (Nagiyama)] Touhou Ryoujoku 36 Udonge Dogezax (Touhou Project)

(Daikyuushuu Touhousai 11.5) [Eromazun (Ma-kurou)] Yowasareta Udonge ga Rape sarechau | Udonge Gets Drunk and Raped (Touhou Project) [English] [Panatical]