1girl, ass, hand_to_own_mouth, himekawa_kotone, knees_together_feet_apart, knees_up, legs, long_hair, long_sleeves, mitarashi_kousei, no_shoes, panties, pantyshot, purple_hair, red_eyes, red_skirt, school_uniform, shirt, sitting, skirt, smile, socks, solo, thighs, to_heart, to_heart_(series), underwear, upskirt, white_panties, white_shirt, white_sleeves, white_socks