In 1945, Ishibashi entered the School of Oriental Music (now Tokyo College of Music). After studying classical piano at the piano department, he switched to the vocal music department ( was in the third quarter at this time). Around that time, Ishibashi left his mother and visited his father in . At that time, he received a lot of hospitality from his father, but soon after, his mother filed a lawsuit in the Odawara court against her husband on behalf of the city, and the government had began to considered Kando as criminal to the state. Ishibashi would later graduated from the School of Oriental Music in 1949. At that time, it was difficult to earn a living in the world of classical music, so he lived playing in a club in and teaching piano to the neighborhood children. 