Yukari Kamioka

Yukari Kamioka (上岡 由佳里 Kamioka Yukari) is one of the first-year students at the school who lives in the same dormitory building as Mizuho Miyanokouji and Mariya Mikado, who also is her onee-sama; it is a tradition for the underclassmen to serve their respective senpai in any way they can. Much like Kana and Mariya, she is a very energetic girl, although unlike them, she is deathly afraid of ghost stories and anything scary - a fact which Mariya has often used for her own amusement and which initially caused some trouble when Yukari met Ichiko. Yukari is on the track and field team along with Mariya, though her main reason for joining was due to her older sister-in-law who had urged her to come to this school and who was also in track and field. Yukari soon comes to discover that she really does like for track and field and continues to participate in club activities even when she loses her self-confidence in other matters.

Later, she becomes the student council president and the captain of the track and field club, and her another name is Kohaku no Kimi at Seio Girls' Academy. Incidentally, in her path, she retires from the club just before Mizuho's graduation and she begins to study earnestly so that she will enter the same university as him.