1girl, blue_hair, blue_one-piece_swimsuit, blue_sky, blunt_bangs, blush, breasts, closed_mouth, cloud, covered_navel, green_eyes, izumi_hina_(neet_de_otaku_na_kunoichi_to_naze_ka_dousei_hajimemashita), koyuki_(kotatsu358), looking_at_viewer, neet_de_otaku_na_kunoichi_to_naze_ka_dousei_hajimemashita, one-piece_swimsuit, school_swimsuit, short_hair, sky, smile, solo, standing, swimsuit