Reclaiming Earth

(No System + Mecha + Technology + No Female Lead + Human-Machine Interaction)

Six hundred years ago, countless space-time wormholes inexplicably appeared across the globe. Countless enormous beasts came through them, and giant mechs were developed to fend off the monsters.

Lin Nan was a first-generation mech warrior. During a battle against a giant beast, he was swallowed whole.

Six hundred years later, Lin Nan crawled out of the monster's body, only to find that everything in the world had changed. Signs of desolation were everywhere, and Earth had been completely overrun by monsters.

Drawing on the energy he had absorbed inside the giant beast over those six hundred years, Lin Nan possessed extraordinary abilities. He led an army of mechs on a campaign to reclaim Earth.