Denn Coil, Coil — A Circle of Children, is a Japanese science fiction anime TV series that depicts a near future with semi-immersive augmented reality technology. The series is set in Daikoku, a hub of AR development with a growing virtual infrastructure. It follows a gang of children as they use AR glasses to investigate the mysteries of a half-real, half-Internet metropolis employing unlawful software tools, techniques, and virtual pets. Denn Coil is Mitsuo Iso's long-awaited series debut. NHK Educational TV premiered it on May 12, 2007. Denn Coil was greatly anticipated because to its animators and high-profile airtime.