I'm fine with this end even though supposedly there are more. I feel like the story starting to overuse the "it's really nothing special, in fact it's trash but somehow super amazing to normal people" trope. The way the chief explained the belt's origin so casually rubbed me the wrong way. The story already peaked. It's like Bleach all over again, it could have ended with that one fight but then it struggled to pick itself up again.
That's all boys. Pack up.