|| There is Sosuke, he is only five years old.
Koichi is the father of Sosuke and Husband of Lisa he working the fishing boat called Koganei Maru. He was voiced by Matt Damon.
Koichi appears in the Bridge of the Koganei Maru. He has a first mate on his boat and later on the scene watch girl running the waves.
Koichi was portrayed by Kazushige Nagashima in japanese version and later portrayed by Matt Damon.