kusakabe (kusakabeworks), original, commentary, highres, symbol-only commentary, 2girls, barefoot, bike shorts, black sailor collar, black shorts, black skirt, blue sky, building, cloud, day, from behind, long hair, multiple girls, one eye closed, outdoors, pleated skirt, ponytail, pool, sailor collar, school uniform, serafuku, short hair, shorts, skirt, sky, swimsuit, swimsuit under clothes, underwater, wavy hair, white shirtooriginal