Ghost in the Shell is a Japanese media franchise originally written and illustrated by Masamune Shirow. It set in the fictional counter-cyberterrorist organization Public Security Section 9, led by protagonist Major Motoko Kusanagi, in the mid 21st century of Japan.
In this future society, computer technology has advanced to the point that many members of the public possess cyberbrains. And technology allows them to interface their biological brain with various networks. This can also be combined with various levels of prostheses, with a fully prosthetic body enabling a person to become a cyborg. This setting has had an impact on various SF such as The Matrix (1999).
*List of Japanese subculture