a ekoa, hoshino (blue archive), hoshino (swimsuit) (blue archive), blue archive, absurdres, commentary, highres, 1girl, :d, adjusting eyewear, ahoge, bare arms, bare shoulders, bikini, blue-tinted eyewear, blue eyes, blush, collarbone, cowboy shot, day, eyelashes, eyewear on head, frilled bikini, frills, hair between eyes, hair bobbles, hair ornament, halo, hands up, happy, heterochromia, long hair, low twintails, navel, ocean, official alternate costume, official alternate hairstyle, open mouth, outdoors, palm leaf, pink hair, pink halo, smile, solo, stomach, sunglasses, swimsuit, tinted eyewear, twintails, very long hair, w, white-framed eyewear, white bikini, yellow eyes