1girl, arknights, arms_up, bikini, black_bikini, blue_sky, breasts, cleavage, cloud, cropped_legs, day, hair_between_eyes, hand_in_own_hair, horns, long_hair, long_sleeves, medium_breasts, puffy_long_sleeves, puffy_sleeves, purple_eyes, red_hair, side-tie_bikini_bottom, sky, solo, surtr_(arknights), surtr_(colorful_wonderland)_(arknights), swimsuit, thigh_strap, very_long_hair, yxxrem