The first meeting of Shihan Adnan Tarsha with Kancho Shokei Matsui in Japan was in 1982, when he traveled to Tokyo to train with Sosai Oyama founder of Kyokushin karate for a month and to get the third Dan. Both of them were classmates in the same class of Sosai Oyama.

In the same period Shihan Tarsha was in a  meeting with Sosai Oyama in his office, then Sosai asked Kancho Matsui to come, he was then Senpai (2 Dan), then he presented him to Shihan Tarsha as he has the best techniques and he is Japan champion and the coming world champion, then Sosai asked both of them to train together alone in a private class, in addition to the black belt class where both of them were training together with him.

After five years there was the Fourth World Tournament in Tokyo in 6-8/11/1987. Kancho Matsui became the world champion as Sosai expected before five years. The meeting between them was in the farewell party when Kancho Matsui came to salute him and he remind Shihan Tarsha about the private training they did together alone before five years in 1982. Shihan Tarsha congratulate him for his win and for getting the title of world champion.

After eight years they met in the Sixth World Tournament in Tokyo in 3-5/11/1995. Then they met in the international branch chiefs meeting, and also in the farewell party. Sosai Oyama was dead in April 1994, and asked in his will that Matsui to be his successor to direct the International Kyokushin Karate Organization.

After seven years they met in Kuwait in the Second Liberation International Tournament in 27-28/2/2002.

In the next year Shihan Tarsha was assigned as the Middle East Team Manager, so they met in Tokyo in the Eight World Tournament in 1-3/11/2003. Also in the meetings before and after the tournament.

In the same period they met in the international training camp in Mitsumine mountain, more than 400km away from Tokyo. The camp was for three days in 4-7/11/2003.