She is very affectionate, affectionate and sweet. He usually does not take part in group parties, preferring to observe. Like Chisa (her younger sister) she loves to dive and is a diving instructor. She has a very severe sister complex when it comes to Chisa. If Iori is mentioned as Chisa's boyfriend, Nanaka becomes very hostile, scary, and even resorts to violence if necessary. She is usually very empathetic and understanding and takes things easy.