Hiroko Otsuka, a Master and current Soke of Wado-Ryu karate, is dedicated to preserving her father Minoru Otsuka’s legacy while modernizing the martial art. She has expanded the Otsuka family's influence beyond martial arts, through Otsuka Green Tea, a company offering premium teas rooted in Japanese tradition. This venture embodies the values of Wado-Ryu—discipline, balance, and harmony—by promoting health and well-being through ancient tea cultivation techniques adapted to contemporary lifestyles.  

Through her leadership in both Wado-Ryu and Otsuka Green Tea, Hiroko Otsuka merges martial arts with traditional Japanese wellness, inspiring practitioners and tea consumers to pursue a balanced and peaceful life that honors tradition.