1girl, arknights, arm_support, bikini, black_bikini, breasts, closed_mouth, cloud, day, demon_girl, demon_horns, detached_sleeves, expressionless, feet_out_of_frame, flower, grass, hair_between_eyes, hair_rings, head_tilt, horn_ornament, horns, leaf, long_hair, looking_at_viewer, medium_breasts, official_alternate_costume, outdoors, planted, planted_sword, purple_eyes, red_hair, ribbon, rilideli, sky, solo, star_ornament, surtr_(arknights), surtr_(colorful_wonderland)_(arknights), swimsuit, swimsuit_cover-up, sword, very_long_hair, water, weapon, white_ribbon, white_sleeves, yellow_flower