1girl, animal_ear_fluff, animal_ears, arm_behind_back, bad_twitter_id, blush, brown_eyes, brown_hair, buruma, cat_ears, cat_girl, cat_tail, gym_uniform, long_hair, looking_at_viewer, mochizuki_riku, original, red_buruma, ribbon, shirt, short_sleeves, solo, sweat, tail, thigh_gap, thighs, towel, two_side_up, white_shirt, wiping_face