Kazunari Ninomiya(二宮 和也Ninomiya Kazunari, born June 17, 1983), often called Nino, is a Japanese idol, singer, songwriter, award-winning actor, television personality, seiyū and radio host. Along with Masaki Aiba, Jun Matsumoto, Satoshi Ohno and Sho Sakurai, he is a member of the Japanese boy band Arashi, who is under the management of Johnny & Associates. He is best known to movie audiences for his portrayal as Private Saigo in the 2006 Clint Eastwood war film Letters from Iwo Jima.