1girl, arknights, arm_behind_head, arm_support, arm_up, armpits, bikini, bipup-hola, black_bikini, black_choker, black_ribbon, breasts, choker, cleavage, closed_mouth, criss-cross_halter, detached_sleeves, hair_ornament, hair_rings, halterneck, horns, large_breasts, long_hair, long_sleeves, looking_at_viewer, lying, navel, official_alternate_costume, on_side, purple_eyes, red_hair, ribbon, side-tie_bikini_bottom, smile, solo, star_(symbol), star_hair_ornament, stomach, surtr_(arknights), surtr_(colorful_wonderland)_(arknights), swimsuit, swimsuit_cover-up, thigh_strap, very_long_hair, white_ribbon