ridding it of its vague illness and aphrodisiac and charm spells (nullifying it to prevent manipulative women from making sly moves on her brothers, literally). Then there is the MC's hypocritical views contradicted by her actions (constantly disregarding the status of the prince, e.g. calling him s*upid in front people/their peers for disregarding her commoner friend) as well as her super sonic speed in mastering skills with no no explanation as to why, WTF?!?

The King’s Younger Brother, Broudo

I have always loved reading light novels and it seems that I have been reincarnated into one. (Ch 1)

Even if someone loved reading light novels or maybe play otome game, would that person normally think "I have been reincarnated into light novel/otome game" when she didn't even have any recollection about the scenes, the events, or the characters in that world which similar to the ones from the light novel/otome game? Normally, rather than thinking that, one would think "it seems I'm reincarnated into another world? What's with this light novel-like development??" Something like that.

So then, how come, the MC who woke up and regained her previous memories suddenly had that kind of idea. Even Katarina from Hameflag was sure that she was reincarnated into an otome game because she remembered & recognized that people around her (including herself) appeared in that otome game.

Even Rosemary from Tensei Oujo (she has her previous life memories since she was a baby) merely thought that she was reincarnated into another world at the beginning. She understood that she was reincarnated into an otome game when she was 3 y/o (3 years later), that is, after recognizing the kingdom name, her father's, and her own name which is exactly the same as the game she played. (She didn't immediately think "I'm reincarnated into otome game" when she realized she was reincarnated.)

The story should start when I am 16 years old~ and currently I should be around 7 years old? (Ch 3)

I don't get it. It doesn't make sense no matter what. What do you mean by that?? Let's forget about how could she come up with this idea of 'story'. More importantly, if the story really will start, how could she know that it would start when she was 16 y/o?? (I even have to check ch 1 because it crossed my mind that maybe the author mentioned the light novel/otome game title and I just missed it. But, no. The author didn't mention anything about the title or the storyline of the light novel/game; even the plot assumed by the MC would happen was purely based on the light novels she read.)

Then... Is it because most light novel stories started when the characters were 16 y/o? If she really loved light novels, she should know that many light novel stories started when the characters on their 15, 14, or even 13; it's not limited to 16.

What I actually like about the side male leads that don't get MC is that they have another girl they are interested in and in the end evrything wraps up nicely

nothing much to say, there is no danger or villan, maybe the Protaganist was abit of a villan but it was completely replaced by the MC because Protag got swooned over by cuteness

for and example, the author introduced a knight and kept him in the story for like 3 chapters and then he just disappeared. Also, the author hints at the MC older brother liking the heroine but then all of a sudden the s*upid prince gets the girl and the brother ends up with this random girl the author throws in the middle. Like, sure maybe I was misunderstanding things with the big brother and the heroine but still. To throw this random girl and guy in the story without any warning kinda bothered me. But I still liked the story.