Seiichi Suzuki was born in Hekinan City, Aichi Prefecture in 1911. He suffered from pleurisy after starting work. He joined the Konko Church after being cured, sustained by the great love of his foster mother. In 1938, he joined Ittoen to serve others and to live a life of faith. In 1944 he established Kentoku Company. From that time onward, Suzuki followed his principle of Prayerful Management, his purpose being to integrate moral and business goals in both his own life and his company's business practices. He founded Duskin in 1963. Suzuki then established his groundbreaking distribution network while expanding the cleaning tools rental business nationwide through a franchise system. He started business diversification; Mister Donut was added in 1971. He led the Duskin Group as it paved the way to a multi-franchise business enterprise. Seiichi Suzuki passed away in 1980 at the age of 68.