1girl, arknights, armpits, arms_up, beach, bikini, black_bikini, breasts, cherry, cleavage, closed_mouth, criss-cross_halter, day, demon_horns, detached_sleeves, expressionless, food, fruit, hair_intakes, hair_ornament, halterneck, hiyaori_(hiyahiyaval), horns, long_hair, looking_at_viewer, medium_breasts, navel, official_alternate_costume, outdoors, purple_eyes, red_hair, side-tie_bikini_bottom, slit_pupils, stomach, surtr_(arknights), surtr_(colorful_wonderland)_(arknights), swimsuit, thigh_strap, thighs, white_bikini