From Demon-Hunting Knight to Eternal Sovereign

The main problem is that I can't stand this personality; after all this time, it feels like the protagonist isn't much stronger.

As the title suggests, I saw a familiar theme in this book: starting with slaying demons and achieving immortality. It could be considered a Western fantasy demon-slaying, life-or-death, stat-boosting story (or perhaps a more esoteric one). Those interested can take a look.

The first part was well-written, but after killing the leader, a whole series of absurd plot points emerged. First, there was the forge fragment—they refused to admit it had been stolen, causing a misunderstanding. Then, they acted like they'd never seen a woman before, giving away such a precious crown so easily. Even if she were the female lead, there should have been some emotional development involved; it made the protagonist seem like a simp.

... It lacks a clear worldview, or is simply terrible; the entire story is too depressing to read, except the protagonist's life is incredibly miserable. It's still somewhat readable.

No, do you get so aroused just seeing a woman's thighs? Are you that thirsty?

First, he sought help, was recognized as a heretic, got beaten up, and then was ordered to fight a hybrid Titan, and then teamed up with the Titan????

Can I go for the greatsword build? I'll just use Lion Slash on anyone I see.

I'll say it three times: I need a book review! This is my first time writing a book, and there are so many things I don't know how to do. I hope that any experts who happen to pass by will provide a book review, however insightful. I accept all reviews, good or bad. After all, writing is not a one-way output. If there is anything wrong, please point it out and criticize! Thank you in advance! 😅😢😭 Should I add a map later?

Can he be like Su Xiao, a lone wolf who conquers the world? A typical ruthless and taciturn character, plus the added bonus of being a protagonist and a powerful figure.

It seems like yours uses a template. I've seen several of them, including one for a constable and another for a knight, but aside from the different world setting, they all seem the same.