During this period , Morihei became engrossed in the study of Sokaku 's art , called Daito - ryu Jujutsu .
During this period , Morihei soon persuaded his teacher to move into his home in Shirataki , so he could receive personal instruction .
During this period , Morihei became engrossed in the study of Sokaku 's art , called Daito - ryu Jujutsu , and soon persuaded his teacher to move into his home in Shirataki , so he could receive personal instruction .