He is conscious from moment 0 - from his birth. Tragically his mother died, but she managed to get MC under the 8 years old ML's (crown prince) care before she passed away.

As MC's father is super unreliable, that actually saved MCs life.

On the original, MCs character betrays ML and is executed, so, he is decided to faithfully hold on tight to ML until his "retirement" by the age of 20 (when ML is supposed to get the throne).

completely spoiled, lazy and arrogant.

And maybe he is not that bad, but the way the author wrote it makes me feel that way because there's nothing to balance this personality of his. There's no sense of accomplishment like when the character achieves something.

MC made, with his friends help, a fan, but the author brushed off right after. MC always wants to skip classes. He acts without consequence, doing whatever he wants, never worrying or truly aiming for anything. He brags (to himself, but we get hit by this bullet) all the time about how he is super mature, and then proceeds to act like a baby. He considers himself MLs sidekick, but he knows absolutely nothing about politics, about what is happening, about MLs struggles, nothing - only what he may, out of nothing, remember from the novel.

btw, his knowledge from the novel has been basically useless, as he is always only playing or doing his things.

he got everyone's love almost just for breathing.

and yeah, maybe things aren't so bad, but the way the author wrote the novel made me feel like this.

Like MC is super boring. Just a character playing and bragging using other people's name while life is passing by him.

Even slice of life character have a goal or achieve something for themself, but not this one.

MC finally started to give me the sense of achievement, thanks author for finally giving it some importance.

I really have no problems with their relationship. While to some it sound some bells, they are not really related by blood and ML was also a child when he became responsible for MC.

When ML realized his feelings, he first went on denial. Then, aftef accepting his own feelings, he did some moves to increase their intimacy. That lead to MC realizing his own feelings fot Ml. Both felt, at some point, guilty for their feelings and also fearful of what the other would think.

I'm also surprised that no one opposed their supposedly union except the biological brother of MC. Everyone seemed kinda fine with ML, the person who literally raised MC become his partner lol

Only actual conflict was the true leads' feelings and how they will overcome it

I mayhaps shed a tear when MC's grandparents died. And the way they also died days after each other pls!