Main Characters Kanzaki Nao Akiyama Shinichi Fukunaga Yuji Fujisawa Kazuo Eri Tanimura Mitsuo Sajima Kenta Makita Tomoyuki Ishida Rie Okano Kenya Tsuchida Yasufumi Aso Hiromi Kida Noriyuki Ono Wataru Takamura Yoshimi Eto Koichi