In the anime, the story often progresses at a faster pace to fit within the episode limits. So some parts of the plot might seem rushed. In the light novel, the story can unfold more gradually. For example, character development might take more time and be more detailed in the light novel.
In the anime, the story progresses in a more visual and time - bound way. Episodes have a set length, so sometimes the story has to be cut or condensed. In the light novel, it can be more detailed and take its time with character growth and plot development. For example, in the anime, the Shield Hero's journey might seem more rushed at certain points compared to the light novel.
In the anime, the story progresses in a more streamlined way. It focuses on the main plot points to keep the viewers engaged. In contrast, the light novel may take detours to explore side characters and their stories. For example, the anime might quickly move from one major event to another, while the light novel might spend a few chapters on the aftermath of an event and how it affects different characters.
In the light novel, the story progresses more gradually. There are more details about the characters' growth and development. For instance, Issei's journey to become stronger is more elaborately described. In the anime, some of these details are skipped to keep the story moving quickly.
The Oreimo light novel ending is more elaborate compared to the anime ending. The light novel has the luxury of more words to flesh out the ending. It can describe the characters' internal monologues better, which gives a fuller picture of why they make certain decisions at the end. The anime ending, on the other hand, is more of a visual and abridged version. It focuses on the key moments from the light novel ending but may not be able to convey all the subtleties. For example, in the light novel, the descriptions of the characters' final realizations are more detailed, while in the anime, it's more about showing the end result rather than the process of getting there.
Again, not having read it, it's hard to say precisely. But usually, the story in Overlord progresses by building on the previous events. If in the previous volumes Ainz was establishing his base, in Vol 17 he might be moving towards more outward expansion or dealing with the consequences of his earlier actions.
In general, the Oreimo anime doesn't cover everything from the light novel. There are certain plotlines and details that are missing or modified to fit the anime format and runtime.
The ending of the Oreimo light novel has some mixed reactions. It involves a complex resolution of the relationships among the main characters.
The ending of the Oreimo light novel is a bit controversial. Some fans were happy with it, while others had mixed feelings.
It has some differences. The show made changes to the plot and character developments to fit the TV format and production needs.
After the anime left off, in the light novel, Hajime and his group continue to explore new areas, face stronger enemies, and their relationships develop further.