One of the best. If you're a fan of wistful, bittersweet stories with an underlying theme of the inevitable change that was brought by time, then you're in for a treat. everything is interconnected, even the chapter's name. and when you've arrived at the ending and closed the cover, you'll finally let out a sigh and says , "what a hell of a ride". the mysteries, the art, the thrill, the feels, it's all top-notch. It's a tragedy, and the author won't go soft in the middle and will deliver you a real tragedy. you'll laugh and cry at the same time. Know the saying, "mono no aware"? i think that it's a fitting term to describe the vibe of this series.