 The character "Ambassador Morishima" is modeled after Japanese  animation executive Tsuneyuki Morishima of Studio Pierrot,  Tsuburaya, and Sony Pictures, Japan. In "The Sword of Yurikawa,"  Yurikawa refers to a legendary character in Japan which is a  combination of a favorite minister of an early Japanese emperor and  the stories of Ulysees which were brought to Japan from Europe in  the 16th century. (Folk Legends of Japan, R. M. Dorson; Chs. E.  Tuttle Co., Publishers, 1972)