Ghost Currency: Buying the Apocalypse

The world has been overrun by ghosts and monsters. After being betrayed and robbed by his girlfriend, he awakened a system with infinite "Ghost Coins." In this new nightmare, money talks. He can buy off ancient demons, hire spectral assassins, and purchase safe zones. While his greedy ex-girlfriend begs for scraps in the ruins, he is the wealthiest man in the afterlife, using his riches to dominate the supernatural world and get his revenge.