It really depends on your language skills and comprehension ability. Generally, reaching at least level 20 might give you a decent foundation for attempting to read light novels, but it's not a strict rule.
Well, it's not so straightforward. A lot of factors come into play. But typically, if you're at Wanikani level 30 or above, you'll have a better chance of understanding light novels, although you might still encounter some challenges.
The ability to read light novels doesn't solely depend on the Wanikani level. It also involves your vocabulary, grammar knowledge, and reading practice. However, reaching around level 25 could be a starting point for giving it a try.
The best chapter pointer here is Chapter 227, "There's Something Wrong with This Stepmother". It opens with Your Four Pillars of Destiny is very strong, with wealth, authority, and... and closes on Your three palaces are prosperous, and correspondingly, your marriage....
The best chapter pointer here is Chapter 251, "It seems that going on a transformation show is really useful!". It opens with If Du Qinglian was somewhat angry just a moment ago, now she was simply at... and closes on The moment the connection was successful, before even appearing on camera,....
If you want the clearest chapter reference, go to Chapter 246. Early on, At that moment, not only Su Yinwan but also Shang Shaojing's complexion...; later, the chapter leans on Beside them, Shu Yan wore the shocked expression of someone who had got....
If you want the clearest chapter reference, go to Chapter 247. Early on, Facts have proved that arch-enemies often understand each other the best.; later, the chapter leans on It was barely dawn, and Jiang Yan had already had a meltdown..
Look to Chapter 223 for the clearest answer. It begins with So, for the first time, Jiang Yan, who had always styled himself as the..., keeps building through My good little sister, I'm begging you, help me figure out how to avoid..., and lands on The damned Jiang Li was tricking him again!.
The best chapter pointer here is Chapter 238, "The Guests Were Dumbfounded, The Audience Was Excited". It opens with Jiang Li was actually first on all three leaderboards?! and closes on And, to Zhou Xu's alarm, they did find a problem..
Chapter 225 is the strongest chapter-level answer because it starts from When Zhao Lang's devastatingly handsome face appeared, all six people... and follows through on Which big shot is inspecting again???] [The ID is still in the United Arab....
Chapter 230 is the strongest chapter-level answer because it starts from Shang Shaojing's expression wasn't looking too good either. and follows through on If he knew that your stepmother was secretly prompting you towards a.... The payoff is that the chapter closes with "Liu Linmei!
The best chapter pointer here is Chapter 257, "Did Jiang Li Get in Through the Back Door?". It opens with This nation seemed to have a particular love for bright colors. and closes on Yet in the end, not only did she have no sense of guilt, she even forgot....
Look to Chapter 216 for the clearest answer. It begins with The production team also took advantage of the situation to start an..., keeps building through The enthusiasm has not dwindled over time., and lands on However, the next second, He Yun, who had hardly ever spoken to him,....