Growing up as an orphan who suffered years of hatred and social isolation has influenced Naruko's character in a number of ways: she is heedless to formality and social standings, addressing certain people with nicknames instead of honourifics, although by the time of her teenage years, Naruko has slightly outgrown this trait. she has picky eating habits of ramen, her favourite food; she has a perverted side that manifests as attempts to peep into men baths, although these moments are rare.