Shintaro Kago's style has been called "fashionable paranoia", dealing with themes like extreme sex, violence and abnormality. He has been published in several adult manga magazines, gaining him considerable popularity.

His short story 'Punctures' (about a man who is so paranoid about getting holes in anything that he rather makes the punctures himself before it really happens) has been translated into English and published in the 'Secret Comics Japan' collection of underground publications. Offers have been made to publish his work in France.

Once an assistant to OGINO Makoto.