Kain

Sinopsis

Kain follows a blue-eyed boy as he wanders through the countryside. He finds himself in a town under the control of "kidoushi," individuals from the newly established country of Ren. These kidoushi possess a machine called a "gigai" within their bodies, granting them power equivalent to an entire army. The extent of a kidoushi's power is directly related to the amount of gigai integrated into their body, with some sources indicating that this power comes at the cost of proportionate pain.