Sako-sensei was born in Shimonoseki, Yamaguchi Prefecture. After graduating high school he took a job as a barber. When he was around 28-years old, he aspired to be a cartoonist and became Hinata Takeshi's assistant at no charge, learning a great deal.
Sako-sensei is a married man and his blood type is B.
- 2005: "Usogui" has an honorable mention award at the 48th Young Jump Monthly Manga Grand Prix. In the same year, the work is published in issue 48 of Weekly Young Jump.
- 2006: The serialization of Usogui starts in Weekly Young Jump from issue #24.
- 2018: The serialization of Batuque starts in Weekly Young Jump from issue #31.