 After working as an inker and painter on "" for Studio Ghibli, he decided to leave school in the middle of the term and began working at Studio Hard.He began doing illustration work for game magazines under his Futeki Banzai pen name, and in 1988, Mita made his debut in "Gekkan Dragon Magazine".From 2003, Mita began suffering from cataracts (his father also had cataract problems).