Characteristic
surnames
Tan, Kobayashi, Watanabe, Ishikawa, Nakayama, Nakamura, Tsuchiya, Kawamura, Sakamoto, Miyakubo, Fujisawa, Tashiro, Shiozawa, Furuya, Narita, Domigo, Sasaki, Minami, Momose, Ogawa, Okuno, Okada, Fujii, Kasai, Asano, Goto, Kato, Sato, Nishimura, and Hashiguchi