Miss Kobayashi's Dragon Maid: Kanna's Daily Life Vol 6

Everyone in Kanna's world is getting along splendidly, and she is enjoying her elementary school life. Reading, marathons, and, of course, school lunches-Kanna loves them all. Not to mention going to the candy store after school! But what will she do when an unexpected change comes over Saikawa-san?
The cold of winter fades into the warmth of summer. Which is faster-the changing of the seasons or children growing up?