1boy, 1girl, akane_(etra-chan_wa_mita!), beach, bikini, black_bikini, black_eyes, blue_sky, breasts, cleavage, closed_eyes, collarbone, day, dog_tags, etra-chan_wa_mita!, eyewear_on_head, ine-00, large_breasts, looking_at_viewer, open_mouth, outdoors, photo_background, red_hair, short_hair, sky, smile, sunglasses, swimsuit, tachibana_(etra-chan_wa_mita!), teeth, undercut