1girl, 7th_dragon_(series), 7th_dragon_2020, arm_behind_head, armpits, arms_up, bare_arms, bare_shoulders, blonde_hair, blue_eyes, blue_sky, blush, breasts, chelsea_(7th_dragon), closed_mouth, cloud, colored_eyelashes, cowboy_shot, day, double_bun, hacker_(7th_dragon), hair_between_eyes, hair_bun, horizon, innertube, looking_at_viewer, naga_u, ocean, old_school_swimsuit, one-piece_swimsuit, outdoors, school_swimsuit, sky, small_breasts, solo, standing, swimsuit, water, white_one-piece_swimsuit