Doki?Doki Volume: It's my Birthday S21E21 - Doki?Doki Volume: It's my Birthday 2005
- Released: 2005-12-13
- Runtime: 50 minutes
- Genre:
- Stars: Rumi Shishido, Yuuko Satou, Nao Nagasawa, Fuyuka Ono, Kaori Fukuhara, Kenyu Horiuchi, Nanae Katō, Shizuka Itoh, Urara Takano, Wataru Hatano, Erika
- Director: