Board Thread:News and Announcements/@comment-4556650-20140411113722/@comment-3544775-20141010152300

Well I can see from where they though about Excalibur, since it's often believed to be the Sword in the Stone and that story in the chapter is really based on that idea.

About the chapters per episode. You can ignore the 2nd episode too, because after that the chapters are becoming with normal length. Ep2 should be Chapter 2 (40 pages) & Chapter 3 (30 pages) = 3.5 chapters. So ignoring the first 2 eps and first 3 chapters, you will get 13 chapters for 4 episodes = 3.25 chapters per episode. So for 24eps, they can adapt the whole current manga if they wish, which I was guessing since quite some time ago. And in 2016, there will be new 100 chapters, so they can do season 2.