Two episodes for world introduction and character presentation.
Few episodes to define the statu quo of the lives of the characters.
Some episodes for The knot.
From 1 to 3 episodes to end it.
If you don't like the kinds of animes that follow that scheme, keep it in mind.
Concerning the plot, there is something to have into consideration: the characters are exposed to a world that they find 'nonsensical' so the story develops through their reactions to that 'nonsense' and how they feel the need to rebel against it. It's as deep as you are able to deepen trough what is shown.
It has a huge cast of characters. Some of them are cliché, but some of the secondary are well constructed, with subtle hint's of their personalities and backgrounds that are believable and feel like full characters that simply can't have enough screen time because story relevancy.
The main character is conceived to be the nexus between our world and that one, so the audience might experience the confusion of the weirdness on the world mechanics as well as the behavior of some of the cast. He is the vehicle to warm the audience into the journey of that story, but his development is on point. The way he changes his behavior, or don't, as his memories come back, as well as his wavy reactions (he don't reacts always the same way, it depends on the situation, and on many other conditions, but he still is coherent and cohesive).
In general, this anime deserves to be given a chance. Don't put it right next to the Goddess of animes, just watch it without any weird expectations and the journey would be worth your time.
