And you're completely valid for that. There's nothing wrong with liking something because it's predictable. Cliches exist because they work after all. Heck even I myself will rewatch/reread the same shows or stories over and over again because starting a new one gives me anxiety.
The problem is that with so many manhwas coming out left and right all with so many identical premises and details. It gets really boring and repetitive after a while. There's no more element of surprise that leaves you wanting to know what happens next. And that part is important because it's what's meant to keep the readers hooked.
NOTHING not a single thing of the story so far has been original or different. Every time something happened I was able to predict the outcome. The moment they said paternity test I knew for a fact that it was gonna be the same old situation with the temple messing with the results. Along with literally everything else just EVERYTHING about the story jesus...