Metal Saga: Season of Steel

In the near future, the world was devastated by a supercomputer named Noah. However, remnants of humanity survived this cataclysm, naming the event Great Destruction. Noah continued its intent to wipe Earth clean of humanity in this post-apocalyptic world. However, a hunter named Rebanna destroyed Noah before its ambition was fulfilled. Noah foresaw and made counter measures, thus Rebanna's children undertake the task to fight the resurrected supercomputer. (Wiki)