Tears Don't Belong in Zu'an

Mechs, slow burn, passionate action, battles, satire, twin cities, no female lead but multiple women

He transmigrates into an orphan from the bottom of the twin cities, surrounded by a foul-smelling environment, but unexpectedly gains a pair of eyes that can see the value of everything.

Alchemical trash and technological waste in other people's eyes are priceless treasures to him.

With these eyes, he salvages a cooling pipe from a dangerous drifter's gear in a junk heap and assembles a titanium-alloy suit of armor for a mech hunter.

While scavenging and finding hidden treasures to repair his damaged genes, he watches the city's hypocrisy and madness with cold eyes.

The nobles of the Upper City think they can tame him like a dog with money and beautiful women;

The academy's leadership thinks it can forge him into an obedient blade with knowledge and power;

The thugs of the Lower City think they can bind him to their cause with morality and sympathy.

But they're all wrong.

When a scavenger tears apart the Upper City's hypocrisy with a cobbled-together mech, when heretics curse his greatness amid the filth, when abyssal monsters tremble because of him...

He steps over everyone's corpses and arrogance and crowns himself a god atop the ruins.