Mary and her husband Fumio Teshima founded Teshima's Restaurant in 1957, emphasizing intimacy and customer focus. The restaurant, located in Kona, gained acclaim for its addictive shrimp tempura and sukiyaki, making it a gem according to diners and reviewers. The legacy of Teshima's was maintained by Grandma Teshima, who raised a large family and instilled the values of customer satisfaction and hospitality. Over the years, the restaurant became a home for family, friends, and visitors, with Grandma Teshima actively involved until her passing at age 106. Today, her descendants continue her tradition, ensuring customers are happy and well-fed while preserving her legacy and keeping the business vibrant.