1girl, bare_shoulders, barefoot, blue_archive, breasts, covered_navel, drink, hair_ornament, hairclip, halo, hina_(blue_archive), horns, long_hair, looking_at_viewer, lying, on_back, one-piece_swimsuit, out_of_frame, purple_eyes, purple_hair, sketch, small_breasts, swimsuit, tyawantyawan356, very_long_hair, white_one-piece_swimsuit