榊原 小雪

Koyuki is a student in Kawakami Academy and part of class 2-S, which only the elite students can be part of. She is called "Yuki" by her friends. Koyuki has two childhood friends, Aoi Touma and Jun Inoue, whom she always hangs around with.

Yuki is really innocent and loves to eat marshmallows. It is said she and Miyako have similar personalities. She also likes to write novels with odd titles and plots.

She always listens to what Touma says and does anything he tells her to do. She also likes to make fun of Jun's lolita complex and bald head.