1girl, d, ass, bikini, bikini_top_only, blue_eyes, blue_sky, blush, braid, brown_hair, eyebrows_hidden_by_hair, hair_bun, hanamasa_ono, idolmaster, idolmaster_million_live!, kousaka_umi, light_particles, long_hair, looking_at_viewer, looking_back, ocean, one_eye_closed, open_mouth, pocket, short_shorts, shorts, single_hair_bun, sky, smile, solo, splashing, striped, striped_bikini, swimsuit, water, white_shorts