1girl, d, aihara_akito, bare_shoulders, bikini, blush, breasts, choker, cleavage, earrings, greyscale, hat, jewelry, long_hair, looking_at_viewer, monochrome, natsuki_(new_normal), navel, new_normal, open_mouth, seashell, shell, smile, solo, straw_hat, sun_hat, swimsuit, v, wading, watch, wet, wristwatch