(C92) [Dotechin Tengoku (Ryuuki Yumi)] cow cow time Pics (C92) [どてちん天国 (りゅうき夕海)] cow cow time

(C94) [Dotechin Tengoku (Ryuuki Yumi)] Yome to Boku Returns (THE iDOLM@STER)

(COMIC1☆12) [Dotechin Tengoku (Ryuuki Yumi)] Love Mako (THE iDOLM@STER)

(SC2018 Autumn) [Dotechin Tengoku (Ryuuki Yumi)] Yome Chichi Iyashi (THE iDOLM@STER)

(C68) [Dotechin Tengoku (Ryuuki Yumi)] PSYCHO ROCK -cow version- 2000-2002

[Dotechin Tengoku (Ryuuki Yumi)] SWEET COWCOW

(SC45) [Dotechin Tengoku, L.L.MILK. (Ryuuki Yumi, Sumeragi Kohaku)] Ushisawagi

[Dotechin Tengoku (Ryuuki Yumi)] Ane Ushi

(C69) [Dotechin Tengoku (Ryuuki Yumi)] PSYCHO ROCK cow-version 2002-2004

[Dotechin Tengoku (Ryuuki Yumi)] MiruMiru

[Dotechin Tengoku (Ryuuki Yumi)] MILK THE COW