Eiko Masuyama, born Tomoko Masada on April 22, 1936, was a prominent figure in Japanese cinema and voice acting, leaving an indelible mark on film history. Best known for her role in the classic anime "Attack No. 1" (1970), Masuyama's contributions extended beyond traditional acting; her voice brought life to beloved characters, making her a sought-after figure among collectors of Japanese media. Her performances were characterized by a unique blend of emotional depth and charisma, which resonate with fans of vintage Japanese cinema. Collectors especially seek out her work due to the nostalgic value and cultural significance of her films. "Attack No. 1," with its iconic status in the sports anime genre, remains a prized possession for those who appreciate the roots of anime and its evolution over the years. Masuyama's legacy continues to thrive, as her performances are celebrated and preserved in various physical media formats, ensuring her place in the annals of film history.