1girl, ahoge, animal_ear_fluff, animal_ears, arknights, arm_behind_head, arm_up, armpits, bad_pixiv_id, bikini, black_bikini, blue_eyes, brown_hair, collarbone, feet_out_of_frame, fox_ears, looking_at_viewer, navel, official_alternate_costume, oripathy_lesion_(arknights), short_hair, solo, sora_mame_(princess_0sora), standing, sussurro_(arknights), sussurro_(summer_flower)_(arknights), swimsuit