The restaurant Piano is located in Gangwon Province, the city of Donghae, on the seafront of Mangsang, a place of rare beauty reminiscent of Naples. The owner has learned the secrets of Neapolitan pizza at the Associazione Verace Pizza Napoletana and learned the traditional cuisine in the Lady Pizza and Da Attilio.The Piano restaurant uses only products of Italian origin to revive the true Neapolitan pizza learned at the AVPN. On the seafront of Mangsang, which closely resembles that of Naples, the restaurant plan is working better in the study to provide the real pizza of Naples.