1girl, arms_between_legs, bikini, black_hair, blue_sky, blush, breasts, cleavage, collarbone, feet_out_of_frame, idolmaster, idolmaster_shiny_colors, kazano_hiori, light_smile, looking_at_viewer, medium_breasts, mismatched_bikini, mole, mole_under_mouth, mossan_(mossan-777), purple_eyes, side-tie_bikini_bottom, sitting, sky, solo, swimsuit