Although each episode remains engaging, there is a noticeable rush to try and get as much resolved as possible. Just about every plotline gets some attention at some point, though some are skipped over a little too quickly and really don't receive that much attention. Minor plotlines are the usual victim when it comes to these "quick resolves," though the major elements are given just the right amount of time to work everything out.
The final four episodes see the dimensions beginning to converge and harmonize. Much of the focus is on Haruka, as Noein tries to convince her to destroy the world and recreate it. Haruka is confused and torn through most of the ordeal and is manipulated by Noein, who begins to show her the pain and suffering her friends will endure if his plan doesn't work. Of course, Noein does this by making use of the show's premise that there are thousands of parallel universes created by every possible outcome.
During these events, all of the show's multiple characters begin to place themselves in various positions. What's neat about seeing different versions of each character is in how they react. Most of the younger versions are exciting or scared of what's going on, while the older ones usually take it in stride.
Given that this is the last volume, it is best to start the series from the beginning rather than jumping in now. As with the rest of the series, Noein - To Your Other Self, Vol. 5 is a bit more cerebral and doesn't dumb anything down for viewers. So again, if you typically don't go for shows that make you think about how elements relate to one another, stay away. Otherwise, the series is enjoyable and highly recommended.