He won the 2nd Mephisto Prize in 1996 while in Kyoto University, and started to work as a novelist.
[1] The JDC (Japan Detectives Club) series has inspired tribute novels by authors like Ōtarō Maijō and Nisio Isin.
In the same year, he carried out "Doumo tour", the autograph sessions for 12 consecutive months held in Japanese major cities, and made a great success.
On May 1, 2009, he launched "bbbcircle", his official website, with Kai Chamberlain, a Canadian cartoonist.
His works defy not only the common wisdom of novels but general knowledge in the broad sense and give new values to readers.