In 2147, the federal government implemented a cruel fire plan. Countless girls were transformed into robot girls, and all the unqualified ones were sent to the destruction site to be crushed. Shen Mengyao, a genius in mechanical modification, saw through the atrocities committed by high-level officials and secretly rescued Yuan Yiqi, a defective robot girl who was condemned to be scrapped. Yuan Yiqi hides a rare spark of consciousness in his body, but is controlled by the federation. The two hide underground to form the Mechanical Heart Alliance to take in all the suffering cyborgs. They collected federal criminal evidence, fought against Liu Shuxian and the power of the parliament, and experienced sieges and bloody battles along the way. The cold mechanical skeleton is warmed by gentle redemption, and the two work together to tear apart the darkness of the Fire Project and win an equal new life for all machine girls.
Intent: Equality of life, two-way redemption