1girl absurdres arm behind head bandeau bikini black bikini black hair black jacket blue-tinted eyewear blue archive braid breasts butterfly hair ornament commentary earrings grey halo hair ornament hair over shoulder halo halterneck hand in own hair hidulume highres jacket jewelry kisaki (blue archive) kisaki (swimsuit) (blue archive) long hair navel official alternate costume official alternate hairstyle open clothes open jacket single braid small breasts solo stomach stud earrings sunglasses swimsuit tinted eyewear very long hair