1girl, blue_hair, breasts, dark_blue_hair, fingernails, from_below, hand_on_own_hip, hayami_kanade, idolmaster, idolmaster_cinderella_girls, idolmaster_cinderella_girls_starlight_stage, koya_(koya_x_00), large_breasts, nail_polish, open_collar, parted_bangs, school_uniform, short_hair, signature, simple_background, solo, speech_bubble, v-shaped_eyebrows