sintaro okabe, hanakuma chifuyu, koharu rikka, natsuki karin, synthesizer v, translation request, !, 1boy, 3girls, beach, bikini, black ribbon, blush, breasts, breasts squeezed together, bright pupils, brown hair, caught, collarbone, covered erect nipples, dark-skinned male, dark skin, full-face blush, gigantic breasts, hair ribbon, heart, looking at breasts, mole, mole under eye, motion lines, multiple girls, navel, nipple slip, nipples, open mouth, outdoors, paizuri, pov, purple eyes, red bikini, ribbon, sand, sidelocks, solo focus, speech bubble, spoken exclamation mark, swimsuit, twintails, water, white pupils