One Summer's Day Cast Keiju Kobayashi Takuro Atsuki Kanae Katsuno Nanami Sano Aoi Miyazaki Kunihiko Hisamitsu Shiho Akutagawa Katsuya Koiso Wakaba Irie Kôichi Ueda Hikari Ishida Shin'ya Yamamoto Yasufumi Hayashi Ryo Amamiya Bengal Toshie Negishi Mickey Curtis Kin Omae Shinya Owada Kyusaku Shimada Miyuki Matsuda Kin Sugai