Orcus System

Simon took on simple jobs around town to make quick money. He believed he had landed a decent gig with the military but soon realized it was one of the worst mistakes of his life. After his friend's murder, he found himself enmeshed in a world teeming with monsters, hunters, and horrors typically confined to nightmares. Driven by revenge for his betrayal and a desire to grow stronger, he confronts both monsters and humans, aided by a peculiar system. As he levels up, the system evolves. He got a list of names he needs to eliminate, and as he grows alongside the system, they slowly become something terrifying to his enemies on the list.