Miyuki Koshiki

Miyuki Koshiki (古式 みゆき Koshiki Miyuki) is a good friend of Kengo Miyazawa.

Appearance
Miyuki has thigh-length dark lavender hair that has bangs covering her forehead with hair strands framing her face on both side, golden eyes and a white eyepatch on her right eye from an accident. She wears the standard girls' uniform.

Biography
Miyuki comes from a famous archer family and a good friend of Kengo Miyazawa. She was very talented and serious about archery. However, due to a disease, she lost one of her eyes, making her unable to continue practicing archery. This left her very depressed. In the first timeline of the real world, she committed suicide, for which Kengo blames himself because he thinks he didn't support her enough. In the artificial world, Kengo saves her by jumping after her and covering her when she jumps off the roof of the school. Because of this, Kengo becomes injured. Unable to participate in the kendo tournament, he joins the baseball team of the rest of the Little Busters. It is unknown, however, if Kengo saved her in the second real timeline created by Riki, but the artificial world replayed after Komari's route states "Koshiki-san wasn't harmed", which leads to the obvious conclusion that Miyuki is alive.

Etymology

 * Miyuki's surname Koshiki means "old" (古) (ko) and "formula" (式) (shiki).

Trivia

 * In Komari Kamikita's route, when Riki Naoe visits the grave of Takuya Kamikita (Komari's older brother); Kengo Miyazawa can be seen visiting Miyuki's grave.
 * This reflects how, in the game, Miyuki is only saved from the second playthrough on (Komari's is the first route to be adapted).
 * In Rin Natsume's route, during the baseball battle, Kyousuke Natsume creates an illusion of Miyuki to distract Kengo so that he can win and this situation is repeated in Episode 06 of the second season of the anime series.