 Koume is an average-sized girl with short reddish-brown hair and dark blue eyes. Koume is shown to be a sweet girl. Koume is a sweet girl. As a caring person, she worried about whether Miho would still do Sensha-Dō after having had such a trauma. She blamed herself for the defeat and Miho's departure, feeling bad for what happened. During the The 62nd National Tournament her tank slid of a cliff into water, her crew and her were saved by miho but the team lost.

