Keisuke Matsuoka (松岡 圭祐 Matsuoka Keisuke) exploded onto the literary stage in 1997 with the psycho-thriller Saimin (Hypnosis), which sold over a million copies in short order. Two years later he published Senrigan (Second Sight), with a former Air Self-Defense Force fighter pilot turned clinical psychologist as its heroine. The title has spawned a veritable flood of sequels, which have achieved combined sales of over six and a quarter million books to date (Matsuoka's agency has trademarked the Senrigan name). In 2010, Matsuoka launched the Banno kanteishi Q no jikenbo (Appraisal Case Files of the Omnicompetent Q) series, with nine volumes appearing in the span of a single year. He is known for deftly weaving global political issues and near-future projections into his works.