Yume is quite shy but becomes confident around her friends. As a bookworm, she usually has her face buried in a book. She doesn't like talking to strangers much, but if you engage with her, she can go on and on about the characters and plot for hours on end. She is one of the romanceable characters in Act 1. She secretly has a crush on Akari, but chooses to ignore it in worries it would ruin their friendship.