Except maybe the main love interest. But maybe the spark should be kind of sudden? IDK. It's kind of sudden (i.e. Can also be considered not sudden), and I just don't oppose it.
The MC became the Otome game's protagonist !!! (not literaly but like stealing the protag's plot events?) I know there's some stuffs like this but this one's truly stealing, like if you view everythkng through Otome plotlines it fits perfectly.
1. The male lead is very obvious (though you can still have some expectations on how to settle the harem.
2. The love process/reasons is... (SPOILER ALERT!!)
1. Looks beautiful 2. Fighting illness 3. Behaving like a good normal person (like in contrast to most nobles?)
Well not rlly but - Thr MC has the power to save a friend/love interest (not the male lead thou //probably that's why?) 's little brother who is suffering from the same illness as the MC but chose not to because "it must not be known, for sbdy might have bad intentions on you (MC) " and "you can't cure everyone" kinda flowery world B**S**t...... well for me that just means you don't care about him enough, don't trust him enough, and that your relationship with him does not deserve to be more than a schoolmate (I would not even be friends with a person who chooses to sacrifice a small amount including your brother (so maybe even you) to save a larger amount (w/himself included). Being pressured by people who cares about you still doesn't justify this action (at least for me)