world's greatest assassin gets reincarnated

The main character is, of course, the world's greatest assassin who gets reincarnated. But without having read the entire novel in detail, it's hard to say exactly who else might be important. There could be a mentor figure in the new world who helps him adapt.

One reason is its unique concept. The idea of the world's greatest assassin being reincarnated into a different world brings a fresh take on the isekai genre. It allows for interesting character development as the assassin has to adapt to a new environment with different rules and powers.

The world - building in this light novel also plays an important role. It could be a fantasy world with unique magic systems or a more historical - like setting. The settings would affect the assassin's actions and the overall atmosphere of the story. If it's a fantasy world, there might be magical creatures and spells that the assassin has to deal with.

One key feature is the unique concept of an assassin being reincarnated. It often brings in elements of mystery as the assassin has to navigate a new world with their old skills. Another feature could be the character development, seeing how the assassin's personality changes or adapts in the new life.

In this novel, the reincarnated assassin is the central character. Alongside, there could be characters who are part of the new world order. For example, there might be a powerful noble who has an impact on the assassin's new life. There may also be other assassins or fighters who cross paths with the main character and either become friends or foes depending on the situation.

Another theme might be power and its consequences. As an assassin, he has a certain kind of power. The novel could explore how this power affects him and those around him. For instance, does it isolate him or attract unwanted attention?

The central character is the reincarnated assassin. He is likely to be surrounded by various characters. There might be a female lead who he forms a bond with, either as a friend or something more. There could also be characters from his past life who somehow have a connection to his new existence, like an old rival who has also been reincarnated or an old master whose teachings still influence him in the new world.

There's also the people he meets in his new life. There's a girl who becomes his ally. She has some special abilities and she helps him understand the new world better. And there are some antagonists too. They are often those in power or with some dark motives who try to stop the main character from achieving his goals.

The most important character is, of course, the assassin who gets reincarnated. His skills and past experiences shape his actions in the new world.

One reason could be the character of the assassin. Since he was the world's best in his previous life, readers are eager to see how he'll use his skills in the new world. There might be complex plots involving his past life's enemies or allies showing up in unexpected ways. Moreover, the light novel might have great action scenes that are well - written, making it popular among action - loving readers.