1boy, solo, Mizuki, Mizuki uniform, beach, sand, ocean waves, ocean, bangs, beret, blinds, hair between eyes, ribbon, , collarbone, on ground, legs on chest, cup, feet, grass, sailor collar, bare shoulders, holding on, outdoors, conch, strapless jacket, light blue jacket, open jacket, hooded jacket, hood down, neckerchief, closed mouth, smile, looking at viewer, messy hair, wet clothes, wet, (tentacles:1.5), (black tentacles:1.3), (surrounded by tentacles:1.2), multicolored water, rough waves, jellyfish, moon jellyfish, night, night sky, starry sky, sitting on beach, black gloves, black shorts, black pantyhose, black footwear, solo,