Well, Nezuko passes Sanemi's test through a combination of factors. Firstly, her strong willpower helps her stay calm and composed. Secondly, her bond with Tanjiro gives her the strength to overcome the challenges. Finally, her inherent kindness and desire to protect others shine through, convincing Sanemi.
As of the current manga chapters, Sanemi is still alive. His character has gone through many challenges but has managed to survive. The plot continues to unfold with him as an important part.
One popular 'zenitsu x nezuko fanfic' is 'The Unlikely Bond'. It beautifully portrays the relationship between Zenitsu and Nezuko. The author does a great job of showing Zenitsu's protective nature towards Nezuko and how Nezuko's presence calms Zenitsu in his often-fearful state.
Well, a lot of it has to do with the potential for character development. In the original story, their interactions are limited, but in fanfics, authors can explore how they would grow closer and influence each other. For example, Zenitsu could become more confident because of Nezuko, and Nezuko could learn more about the human side of relationships through Zenitsu. It's also about the fans' love for the two characters and their desire to see them in different scenarios together.
Since I don't have specific details about this 'sanemi light novel', it's hard to say precisely. However, in many light novels, the plot often includes elements such as a unique setting, be it a fantasy world or a post - apocalyptic one. Sanemi might be at the center of a mystery or a power struggle. There could be a love interest involved too, which could add an extra layer of complexity to the story.
The main character is Sanemi. Depending on the type of light novel, there could be a group of characters around him. For instance, if it's an adventure - themed one, there might be fellow adventurers who each have their own skills and personalities. There could be a healer in the group who takes care of Sanemi when he gets injured, or a strategist who helps plan their next moves. And then there might be a mysterious character whose true intentions are not clear at first, but as the story unfolds, they turn out to be either a great ally or a formidable foe.