1girl, arknights, arms_behind_back, blush, bound, bound_arms, breasts, brown_eyes, cleavage, green_hair, horns, hoshiguma_(arknights), long_hair, najashi, oni_horns, panties, pencil_skirt, ribbon, ribbon_bondage, single_horn, skirt, smile, solo, transparent_background, underwear, white_panties