I was jittery for the first few chapters, feeling the weight of the end-of-humanity setting in relation to the current world. But I kept going, and finished 17 chapters in one go. I don't read a lot of manga, so my rhythm is uneven. The tone is still melancholy if you dwell on it, but there is something moving about the gentleness of the slow post-apocalypse. Will certainly finish this one and possibly seek out the next volumes.