In high school, he was part of an art club but would also visit a literary club once a week. He graduated from the Faculty of Law in Kwansei Gakuin University. After graduating from university, he became a manager at a women's clothing store but decided to quit to pursue a writing career.
He would spend time being unemployed and reading books at the library, until he made his debut in March 2003 with his novel "Dengeki!! Aegis 5" in the magazine "Dengeki Moeou". That same year, two of his other novels Escape From School! and The Melancholy of Suzumiya Haruhi were released, with The Melancholy of Suzumiya Haruhi winning the Sneaker Taisho literary prize.
