I've read two chapters in one sitting... my impression is that your chapters are dense (character-wise) which makes it difficult for readers to identify who these characters are.
And your chapters tend to be "heavy-telling" (remember the principle of show it, don't tell it?) and too rushed in presenting the plot, characters, and worldbuilding.
As a result, readers feel cognitively overwhelmed.
Chapter 1 begins with a chronicle of the kingdom and the four brothers. This is good for straightforward storytelling, like a mother telling her child a bedtime story.
However, instead of introducing relatable characters to the reader through emotional scenes, you instead explain each character one by one like a glossary.
As a result, the reader is not at all impressed by this raw information.
Furthermore, the worldbuilding is introduced too early and too densely, making it feel like an info dump rather than a living world.
My advice is to be more patient in narrating the scenes. Choose one character to be the reader's lens (the protagonist) and move the plot organically from that protagonist's perspective.
Introduce the character organically, how they look, their personality, and their relationships with other characters. Build characters that readers can relate to.
For example, if you want to introduce a character as a loving family person, you could narrate a scene of the protagonist helping his mother cook instead of describing the character as loving through the narrator. This way, readers will likely connect with and care about your character.
Also, refrain from giving worldbuilding information at the beginning of the chapter. You can narrate the worldbuilding more subtly and gradually through the protagonist's actions by providing foreshadowing.
Hopefully, this little bit of feedback helps (or maybe not).
Regards.
Critical Note:
I always position myself as a casual reader who reads once to gauge immersion. Some details may be missed and my judgment may be biased.
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Thanks and regards
