Mukoku (2017)
Original title: 武曲 MUKOKU
Mukoku is a 2017 Japanese-language action movie directed by Kazuyoshi Kumakiri, with a running time of 2h 5m. It stars Go Ayano, Nijiro Murakami and Atsuko Maeda.
Kengo was gifted in Kendo (Japanese martial art) but he quits after a tragic incident. He works as a security guard and spends his days drinking. One day, he encounters a high school student Toru, who has a natural ability in Kendo. Toru revives the spirit of the sport in Kengo and he resumes practice again.