1girl, aqua_hair, blush, breasts, floating_hair, idolmaster, idolmaster_million_live!, jacket, kitakami_reika, large_breasts, licking, licking_finger, long_hair, long_sleeves, looking_at_viewer, open_clothes, open_jacket, pen_in_pocket, simple_background, smile, solo, tongue, tongue_out, twintails, uniform_series_(idolmaster), very_long_hair, white_background, yuanagae