Analyzing the whole story, I think it’s a really great concept, but executed quite poorly. It could have been much more interesting if they had expanded on the Stone and the evil spirits—it feels like they didn't really know how to start telling this story, so by the time you reach the ending, what you witness doesn't hit with a strong emotional impact. This final episode is pretty fantastic in terms of the battles, and when they arrive at the battlefield, there's the classic Akira bike slide reference haha, a total classic.