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Across the world, Saikai (西海 , Saikai ) is quite a rare masculine forename. The first name Saikai is habitual in China, where it is a rare male name, and India, where it is an extremely rare primarily male, but scarcely feminine name. More frequently, Saikai is the last name as well as the forename.
Mr, Bunyu, Kazuo, Kachi, Kenji, Keiko, Keiji, Kunio, Takao, Takeo, Teruo, Nayan, Nobuo, Haruo, Hideo, Hisao, Isamu, Osamu, Yasuo, Yukio, Masami, Masato, Akira, Sunil, Shozo, Shoji, Ko, To, Ho, Sri, Smt, Mina, Smti, Akio, Aiko, Kozo, Masaji, Koji, Luna, Toru, Eiji, Ikuo, Yoko, Yoji, Yuji, Masao, Mikio, Shiro, Goro, and Makoto