
I'm not smart or anything but I remember being super mad about doing an assignment about this topic before when I was an 8th grader.
I saw two comments saying that it is PINK. That only happens if there's a recessive trait that can be partially masked by a dominant trait (incomplete dominance) but in the case that the ML read, both chromosomes are dominant, a.k.a. Co- Dominance which both genes are shown as a result of having no recessive trait.
Red Chromosome DD and White Chromosomes DD (Co-Dominance) both are dominant genes and neither chromosomes can mask/cover each other, so they can't mix up like when there's Incomplete Dominance.
No offense it's been 5 years now since we tackled that lesson, I might have mixed things up so

That Duke of Euros sure is hot. He be mah type of fictional man
AND WHAT DO Y'ALL MEAN THAT THE OLDER BROTHER IS THE MALE LEAD!? WHAT THE FUHHH!?!?

They didn’t adopt FL, she a ward.
She isn’t their sibling nor the brothers see her as a sister.
And if you read the start of the manhwa it’s like pretty much said that nobles takes wards with magical abilities to their household to teach them about magic AND eventually marry their children.
So the older brother being the ML isn’t much of a surprise after seeing that.

THIS! This is the only reason I keep reading cuz istg I really hate the pseudo-incest trope! There's a couple ones where mc is "brought in/adopted" clearly and specifically as future in-law... and that's fortunately very different than adopted/brought in as family member and ending up with a supposedly sibling.

Yeah, also; if people growing up together would be considered “pseudo insect” childhood friends to lovers as a troupe won’t be so popular as it now.
Honestly it’s shown really explicitly in the first 5 chapters that she isn’t adopted, it’s stated that she a ward.
Makes me really wander where people reading comprehension go…

Nah... I honestly think it's more trauma than lack of reading comprehension (not that there isn't one in general tho). From every rofan that involves siblings and adoption... majority ends up in fauxcest (pseudo-incest). Whenever it have brother or sister in the title I need to chack comment section for spoilers on who ML is.
Honestly I just want wholesome siblings relationships and no romance between kids...
The way we all guessed what the folder's "learning materials" were gonna be HAHAHAHAHAHA