1girl, ahoge, aya_(lezon), black_bra, black_hair, black_panties, blue_archive, bra, breasts, cleavage, dark-skinned_female, dark_skin, karin_(blue_archive), large_breasts, long_hair, looking_at_viewer, navel, panties, parted_lips, purple_hair, sitting, solo, stomach, thighs, underwear, underwear_only, very_long_hair, yellow_eyes