Toshio Sako

Twitterhttps://twitter.com/oshitokosa YouTubehttps://www..com/tosiosako He was born in Shimonoseki Yamaguchi Prefecture. After graduating high school he got a job as a barber. When he was around 28years old he realized he wanted to become a mangaka. He is a selftaught artist. He became Hinata Takehishttps://anilist.co/staff/106415/TakeshiHinata assistant without pay. He learned a lot of manga techniques under Takeshi. Before becoming serialized he created numerous oneshots for manga contests. One of them involved karate. Usokuihttps://anilist.co/manga/145521/Usokui/ was his first published manga. Aside from making manga Sako also practices boxing. On August 10 2025 he won the OFB Oyaji Fight Boxing Japan championship a senior boxing association focusing on fighters who are over 30 years old.