K-tai Investigator 7 (ケータイ捜査官７（セブン）, Kētai Sōsakan Sebun, Cellphone Investigator Seven) is a 2008 Japanese television drama which aired from April 2, 2008, to March 18, 2009 on TV Tokyo. It was a joint collaboration between WIZ and Production I.G. One of the episodes was directed by Takashi Miike.[1] it is described as a science fiction tokusatsu action drama. It was replaced in its time slot by an animated cartoon, Mainichi Kaasan, after it ended. A second series titled K-tai Investigator 7: Next (ケータイ捜査官７NEXT, Kētai Sōsakan Sebun Nekusuto) was distributed online beginning in May 2009.[2]