Well wdym... the things u just said are not entirely the plot itself. It’s a scene whereas however dumb they are or too naive to know Nia’s intentions wouldn’t actually matter cuz this is only part of the story to have moments/reconciliation with the ml and the fl after all the tragedy that happened. So I don’t think the the plot is dumb at all...
I was not talking about the plot of the entire manga, the way I wrote didn’t exactly explain what I meant. What I meant was that at that scene or arc was dumb. Because Nya was a snake since he was a child, and he told ml what he wanted to do. Fl also knew about how twist Nya was. So you can call it naive, but they are emperors of powerful kingdoms they should know better than to trust Nya. Specially ml that was fighting just one chapter ago and decline nya’s proposition to do what he did.
Dumb plot right there! They all knew nya’s personality and he wasn’t shy in telling everyone what he wanted. So why were they surprised by his proposal? I can’t with dumb people. They all try to look good but will lose their throne to the first one that is actually smarter than them.