Outstanding in Paris in 2012 when he was only 20 years old, Koji Arimoto is still remembered for the astonishing performance of the Japan Kata team during its successful world final. Since then, he has become a teacher in the JKS (Japan Karate Shoto Federation), but he has not given up competition. 3rd at the Guadalajara Serie A last February, he continues on in his career in the individual and team categories. Today, at 26 years old, this young Sensei (3rd Dan) dreams of one thing : to become World champion again.