Tetsu KariyaTetsu Kariya.

Tetsuya Totsuka (Japanese: 戸塚 哲也, Hepburn: Totsuka Tetsuya; born October 6, 1941), also known as Tetsu Kariya (雁屋 哲, Kariya Tetsu), Ageta Shinya, Ryu Setaki, and Kariya F., is a Japanese manga artist and essayist. He is best known for writing the manga series Oishinbo, one of the best-selling manga series in history. The series was a perennial best-seller, selling 1.2 million copies per volume, for a total of more than 135 million copies sold.