Martial God Immortality: Upgrading a Fire Poker into a Peerless Divine Artifact

[Overpowered protagonist]+ [Rapid leveling]+ [Decisive and ruthless]+ [No bleeding-heart hero]

The protagonist’s items can be upgraded without limit. A fire-poking stick becomes a peerless divine weapon, a scarecrow becomes the ultimate protective charm, and a trash cultivation manual gets upgraded into the greatest demonic art under heaven.