1990s_(style), 1girl, beach, brown_eyes, casual_one-piece_swimsuit, hand_to_head, hood, hoodie, kai_tomohisa, looking_away, nanase_yuu, one-piece_swimsuit, open_clothes, open_hoodie, red_hair, retro_artstyle, sentimental_graffiti, short_hair, short_sleeves, solo, standing, swimsuit, thigh_gap, water, white_one-piece_swimsuit