C115 One Wave Failure
Demonfire Blunderbuss.
This was a firearm that had flowed into this place from some mysterious and powerful eastern land.
The method of using it was extremely simple. One only needed to infuse their own demonic energy into the Demonfire Blunderbuss.
Then, he would pull the trigger. This way, he would be able to release a demonic pellet with relatively high lethality