Upgrade Obsession: Maxed-Out Mecha Girls

The Story

Caesar Leat starts as an ignored F-rank nobody in a society dominated by Mecha Girls. His life transforms when he activates the Upgrade System, allowing him to build a dying Mecha Girl into an SSS-rank masterpiece from scraps and ambition. Each evolution boosts his own power, but this sudden strength attracts unwanted attention. Mechanicus, the elite group operating in the shadows, believes they remain untouchable. They have not yet faced the man who turns junk into legends. His Mecha Girls are ready to set the world on fire for him.