Apocalypse system awakening

▎ When Earth receives a System overnight, everyone gets a Class. Warriors, mages, healers — the works.   ▎ Kang Jihoon gets [Glitch].   ▎ No stats. No skills. No level-up path. Just root access to the System's source code.   ▎ He can see the if-statements behind every skill activation, the spawn algorithms governing every monster wave, the hidden variables that determine who lives and who doesn't. And the first thing he reads is a comment buried in the architecture:   ▎ // selection_threshold: 7 days. Purge non-viable hosts.   ▎ The System isn't here to empower humanity. It's running a seven-day trial — and everyone who fails the threshold gets deleted.   ▎ Jihoon can read the code. He's starting to understand the rules. And somewhere in the deeper layers, someone left him a message that suggests the System has more than one author.   ▎ Now he has six days to exploit a god-tier program from the inside, keep eighty-three people above the kill line, and figure out why the System's creators can't agree on whether he should exist.   ▎ He's not the strongest. He's not the chosen one. He's a bug in the system — and bugs don't follow the script.