1girl, ahoge, ball, bare_arms, bare_legs, beachball, bikini, bikini_skirt, blue-tinted_eyewear, blue_archive, blue_eyes, elbow_rest, eyewear_on_head, halo, heterochromia, hoshino_(blue_archive), hoshino_(swimsuit)_(blue_archive), long_hair, looking_at_viewer, low_twintails, lying, official_alternate_costume, on_stomach, paralier, pink_hair, sand, shore, solo, starfish, sunglasses, swimsuit, tinted_eyewear, twintails, yellow_eyes