1girl, ahoge, arms_up, bare_arms, blue_shorts, brown_eyes, hair_between_eyes, housei_fenoru, interlocked_fingers, light_blush, long_hair, looking_up, on_floor, one_eye_closed, onii-chan_wa_oshimai!, oyama_mahiro, pink_hair, plastic_bottle, shirt, shorts, sitting, solo, stretching, very_long_hair, wavy_mouth, white_shirt