1girl, arm_support, blue_one-piece_swimsuit, blue_sky, blush, border, breasts, competition_school_swimsuit, day, fang, hair_ribbon, happy, holding, holding_toy, naname_ushiro, one-piece_swimsuit, open_mouth, outdoors, red_eyes, red_ribbon, ribbon, rumia, school_swimsuit, short_hair, sky, small_breasts, solo, swimsuit, touhou, toy, water_gun, white_border