Well, there's usually the protagonist who was reincarnated as a werewolf. This character often has the memories of their past life which gives them an edge in dealing with the new challenges. Then there are the other werewolves in the pack. There could be an alpha werewolf who is strong and dominant, leading the pack. And there might be some rival werewolves from other packs who cause trouble for the protagonist and their pack.
Another plotline could involve the werewolf society in the novel. Maybe the protagonist has to navigate through different werewolf packs, each with their own rules and hierarchies. For example, they could be in a pack where they are initially an outcast but gradually earn respect through their unique skills or knowledge from their past life.
I'm not sure if it's extremely popular. It's a rather unique and strange concept for a light novel, and it might not have the mainstream appeal that more common themes like fantasy adventures or romances have.
It depends on your taste. If you like isekai (reincarnation in another world) stories, especially those with a non - human protagonist like a slime, then it's probably worth reading. It offers a fresh take on the genre with its own set of rules and concepts for the slime's abilities and growth.
The ending involves the main character achieving a high level of power and forging strong bonds with his companions. He overcomes various challenges and ultimately finds a place in the new world he was reincarnated into.
One of the main themes could be the struggle between the human and werewolf nature. In many werewolf novels, the characters often face the internal conflict of their dual identities.
I'm not sure specifically as I haven't read the novel, but usually there would be a werewolf protagonist. Maybe a young werewolf who is just coming into his or her powers.
I'm not sure specifically as there could be many different 'der werewolf' light novels. Generally, it might be about werewolves, their lives, their struggles in a fictional world. It could involve things like their transformation, relationships with humans or other supernatural beings.
The exploration of a new world is another typical theme. When reincarnated as a monster, the character is in a different world or at least a different part of their original world. They get to discover new magic systems, cultures of other monsters, and hidden secrets. For instance, in many of these novels, the protagonist discovers unique magic spells or abilities that are specific to the monster species they have been reincarnated into.