Yahiko was actually a full-fledged martial artist when he was young. He was one of those men who were deeply influenced by Bruce Lee in the 1970s and 1980s.

Nanako had become obsessed with martial arts since she was a child under his influence.

Yahiko had always been willing to invest in his daughter’s hobby. Therefore, he had invited the best karate masters as well as combat and fighting masters in Japan to come and teach Nanako.

Nanako showed extraordinary talents in the process of learnin