System Overwrite: The Heavenly Core

Null has never lost a fight anyone can prove happened.By day, Li Wei is invisible on purpose — a mid-level corporate auditor, the kind of employee nobody remembers in the room. By night, he's the unregistered fighter the underground circuit warns newcomers about.He's kept the two lives apart for four years by being careful, unremarkable, and never once giving his sister a real reason to ask what he does after dark. That's the thing he's most afraid of losing — not the fight, not the secret, but being someone she still recognizes as her brother, instead of whatever Null is turning into.Then a fight goes wrong in a way that shouldn't be possible, and something in him switches on that was never supposed to exist. A street enforcer with reach Li Wei's never seen before starts paying attention — not personally. Institutionally. And somewhere he can't see, something has started keeping a very precise account of exactly what he's become.Who's watching him — and does Li Wei even know what he's becoming?