In 2019, NHK released the documentary "The Spirit of Kendo: The Path of No Regret" about All Japan champion Hidehisa Nishimura.

Nishimura is one of the most well-known Kendo celebrities and is widely recognized for being a strong and aggressive fighter (and also his lightning fast Kote strikes). Three times All Japan Kendo Championship champion, he is only the fourth person to achieve this feat. His impressive resume also includes winning the national Japanese police championship and being a member of the World Kendo Championship winning team. In the individual category Nishimura fell in the quarter-finals of the 17th WKC (2018) to his extraordinary Korean rival Jin Young Jo. This production showcases this period of Nishimura's career, where he challenges himself to change his mentality and the way he faces his opponents.

The movie analyses Nishimura's trajectory in a romanticized way, where he studies his own fights and perceives a pattern in his style, which despite being efficient, has an aspect that bothers him: whenever an opponent took the offensive, Nishimura took small steps backwards, creating distance and neutralizing the Seme. That strategy allowed him to enter with his attack, usually an accurate and insanely fast Kote. But he is dissatisfied and says he wants to have a more offensive and fearless style, which does not retreat under intense pressure. Intending to reconstruct his style of fighting, he enters a regime of training and advice with his master, and thus seeks a more "correct" Kendo in his understanding.

According to Nishimura, the changes he was making to his Kendo style affected his performance at the World Cup in South Korea in September, but everything he was working for clicked in time for the 2018 All Japan, held in November of that year. It’s not easy to change your Kendo. When you end up trying something different, changing your mentality on fights or abandoning some aspects of how your body moves, those strikes that were your best shots suddenly stop working. But Nishimura’s trajectory is a good example that it pays off in the long term with commitment and hard work.