Sako Toshio (迫 稔雄) is a Japanese manga artist. He was born in Shimonoseki, Yamaguchi prefecture.

After graduating high school he took a job as a barber. When he was around 27, 28-years old, he aspired to be a cartoonist. He became Hinata Takeshi's assistant at no charge, and learned a great deal.

2005 - "Lie Eater" has an honorable mention award at the 48th Young Jump Monthly Manga Grand Prix. In the same year, the work is published in the "Weekly Young Jump" 2005 no. 48.

2006 - "Weekly Young Jump," the serialization starts from issue no. 24.