1girl, animal_ears, arknights, barefoot, beach, brown_eyes, brown_hair, camisole, choker, choppy_bangs, cloud, cropped_legs, kochiya_(gothope), light_smile, looking_at_viewer, lying, ocean, off_shoulder, official_alternate_costume, on_side, roberta_(arknights), roberta_(summer_flowers)_(arknights), seashell, shell, shirt, short_shorts, shorts, sidelocks, single_thighhigh, sky, solo, starfish, tail, thighhighs, white_camisole, white_choker, white_shirt, white_shorts