However , Morihei showed more interest in practicing Tenjin Shinyo - ryu Jujutsu at night , than in learning the family business .
Yoroku 's plan was to have his son gain the experience necessary to become a successful merchant .
Morihei showed more interest in practicing Tenjin Shinyo - ryu Jujutsu at night , than in learning the family business .
Yoroku 's plan was to have his son gain the experience necessary to become a successful merchant .