Yes, it's the conclusion to the first 'big showdown' episode, and as such works very well as the final episode on this disc. I don't want to spoil anything, so let's just say that the end of this instalment finds all of the involved parties regrouping and deciding what their next moves will be.

Exposition and backstories. All mysteries are revealed, the significance of the photograph found in Tomyo village, the life story of Doc, how the child Tokiko was replaced by the robot Key, the ways in which all the characters are connected, everything.

Key's friends rally for the final battle, but if they go against Ajo will they all make it out alive? And will Key be a living human at the end, or will she make a different choice?