Kyouko Kouda

Kouda's daughter. She is four years older than Rei. Beautiful and hot tempered, Kyouko seems to hold a grudge on Rei for being the best in shogi and that resentment is carried with her attempts to lead him into failure, even when she's being fairly cordial to him otherwise.

[Spoiler] She hungrily craves for the love she perceives she didn't get from her father, but has a remarkably caustic approach to compensate for the lack of it. She realizes way too late that she and Rei could have relied on each other if she had wanted it. [/Spoiler]