Kaori's best friend. She's the childhood friend of Kouki and her family runs a dojo.

Shizuku is a hardworking, kind and caring girl who passes her time on practicing her swordsmanship. She is regarded as a cool and stoic beauty, but actually has a girlish side that likes cute things, such as the color pink, as well as cute animals like cats and bunnies. She has often hid her true feelings and would put up a brave face, as a front so other people did not worry about her.