1girl, ahoge, black_ribbon, blush, bra, breasts, brown_eyes, embarrassed, frilled_bra, frilled_panties, frills, grey_background, grey_hair, hair_ribbon, hand_in_own_hair, hands_up, head_tilt, kasugano_sora, long_hair, looking_at_viewer, nose_blush, pale_skin, panties, ribbon, ribs, simple_background, skinny, small_breasts, solo, thigh_gap, torichikushou, twintails, underwear, underwear_only, very_long_hair, white_bra, white_panties, yosuga_no_sora