I Kill Ghosts and Gods in the City

This world is not simple, there are monsters and monsters walking in it. In order to survive, humans formed an organization called the "Demon Sealing Palace". A few years later, the war broke out. A generation of legendary demon sealers died in battle and were reborn five years ago. This time, for the sake of beauty, for brothers, and for the sake of all mankind, we must "suppress evil and eliminate evil!"