Wormhole Homecoming

Gu Yufeng, twenty-seven, is the future's chief engineer of military quantum weapons. An experimental accident hurls him through a microscopic wormhole into Nandu at dusk on December 9, 1937, the eve of the massacre.

A military AI chip is bound inside his mind, and a real-time HUD marks caliber, chamber pressure, and the probability of a ruptured barrel. But all he has in his hands is an old Hanyang rifle with a cracked barrel, one that could blow him apart at any moment.

Outside the city, a heavy machine gun is aimed at dozens of lives trapped in a dead end. There is no escape, nowhere to hide.

Every parameter says "impossible."

But an engineer's bottom line has never been set by parameters.

From a wormhole's fall into the darkest corner of humanity, he fires the shot that must not go silent, with the worst gun imaginable.