As a boy growing up, he wanted to be stronger than other people. What impressed Asai sensei to learn karate was at a time when the allied forces had just occupied Japan after the Second World War. He observed a fight between a boxer and a karate-ka. Asai sensei was impressed by the karate-ka’s kick which disabled the boxer. The incident was always in his mind. From there he knew karate was the path he wanted to follow. He wanted to be physically and mentally strong and decided to start training in karate. With great determination, Asai sensei studied hard until he gained entrance into Takushoku University. There were about one hundred and fifty students that started with Asai sensei training at the karate dojo, however, within a month there was only a handful. He overcame the hard training and eventually was allowed to live at the karate dormitory. For Asai sensei it was an honor to live there because all the renowned Shotokan masters attended and trained at Takushoku University. Those who knew Asai sensei said that, they were amazed by him and claimed that the only time he did not train was when he ate or slept. The story of Asai's boyhood explains the motive behind everything he later taught: he did not start karate for sport or for show, but because he wanted to be stronger, physically and mentally. The fight he witnessed as a boy — a karate-ka disabling a boxer with a single kick — stayed in his mind, because it showed him a strength that did not depend on size. That same determination carried him into Takushoku University, where the training was so hard that of about 150 starters only a handful remained after a month, and where earning a place in the karate dormitory was an honour. The account ends with the detail that those who knew him said he trained all the time except when he ate or slept — a habit formed in youth that became the foundation of his teaching. For students, the message is that strength in karate is not a talent one is born with, but a decision followed by years of hard practice.