The Art of Self-Defense

Timid and awkward accountant Casey is brutally attacked on the street by a motorcycle gang. He comes across a dōjō led by a charismatic man referred to as "Sensei" and, after taking a trial class, decides to learn karate for protection instead of purchasing a firearm. Despite his physical weakness, Casey's determination impresses Sensei and he is promoted to yellow belt at their next promotion ceremony, while Anna, the sole female student and children's class teacher of the dōjō is denied promotion to black belt.