Joe Shimamura and other cyborgs face a hidden threat: the Bresudo, a group of individuals with extraordinary abilities and intelligence who have secretly shaped human history for centuries. Their motives are unclear, but their influence casts a long shadow. While most dismiss the Bresudo as myth, American journalist Lucie Davenport travels to Texas seeking a specific family connection and encounters the cyborgs. Now free from their original mission to protect humanity following the creation of the UN Guardian troops, the cyborgs are attempting to live peaceful lives.