saisou (2ndere), katase shiori, uchi no kaisha no chiisai senpai no hanashi, commentary request, official art, 1girl, ;d, armpit crease, bikini, blue bikini, blue eyes, blush, breasts, brown hair, cleavage, collarbone, copyright name, day, gluteal fold, hair between eyes, hair over shoulder, halterneck, leaning forward, lens flare, long hair, looking at viewer, lower teeth only, navel, one eye closed, open mouth, shade, sidelocks, smile, solo, sparkle, splashing, stomach, sunlight, swimsuit, teeth, wading, water, wet