1girl, :d, air bubble, animal, bangs, bare arms, bare legs, bare shoulders, barefoot, blue hair, blue one-piece swimsuit, blush, brown eyes, bubble, collarbone, commentary request, copyright name, coral, day, fish, freediving, headphones, helical fort, long hair, looking away, official art, one-piece swimsuit, open mouth, outdoors, sakurazawa izumi, sidelocks, smile, soles, solo, swimsuit, underwater, water, watermark, yui z/x, z/x
1girl, :d, air bubble, animal, bangs, bare arms, bare legs, bare shoulders, barefoot, blue hair, blue one-piece swimsuit, blush, brown eyes, bubble, collarbone, commentary request, copyright name, coral, day, fish, freediving, headphones, helical fort, long hair, looking away, official art, one-piece swimsuit, open mouth, outdoors, sakurazawa izumi, sidelocks, smile, soles, solo, swimsuit, underwater, water, watermark, yui (z/x), z/x