
i gathered some spoilers from here and there.
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FL is the duke's biological daughter.
duke turned back time when he saw the house on fire when the FL was 18 to save his daughter in exchange for all of his memories of them(his daughter and his lover who is the mother of his daughter)
Duke loved FL's mother so much.
guess who is the ML? second prince Noah is indeed the ML. he is a cutie now but he is gonna grow up into a fine man.
Duke is not gonna recover his memory unfortunately. the damage is gonna be there until the end.
FL's mom is dead.
it's a happy ending of course. Noah and FL will get married at the end.

Daniel honey...are you not gonna show up? i'm tired of waiting :(
what's the blonde's purpose in following them? what does he and Daniel want from the FL?
*spoiler next ch*:blonde is gonna walk into her room while she is crying because of another memory from the villainess. she knows who he is but she asks him"who are you?" and the blonde answers"i'm an angelic being" she laughs at him and the pain from her memory fades away.

i...well i have some spoilers that are not that pleasant
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letio is actually a sadistic stalker of the FL in the novel, don't fall for his cute face...he is the first one to figure out the FL's gender and his obsession goes beyond words. this obsession will hurt both FL, ML and he himself.
letio and ignis are brothers.
FL found herself head over heels in love with ignis at some point but the moment she figures out her feelings is not the right time because ignis felt betrayed by her.(she told him about all of her lies and he was devastated)
i'm not sure but....i think ignis will figure out that the FL is a girl but keeps his mouth shut until later(very very later) FL tells him herself that she is a girl but he still feels betrayed and confused.
ignis didn't know that FL has a twin until she tells him herself.
at one point ignis will decide that he will give up the throne for the FL and give the throne to Letio but things happen and he changes his mind.
No matter what letio does FL can't accept him as a love interest and that will cause Letio to go mad and does some crazy stuff to get her...well he can't and after ignis becomes the emperor he will banish letio because he tried to poison the FL(i'm still not 100% sure about this yet but i think his love and obsession got the best of him.)
second female lead is known to have a lover herself.(i think...not sure) and that's why she doesn't care about the male leads.
the main villains are the current empress...and the second female lead's father.
IT'S A HAPPY ENDING...Ignis becomes the emperor...they will get married and she will become the empress.
letio leaves and goes on travelling alone.
*personal decision:overall the male leads are not that likeable so i will drop this for now...if the webtoon goes on any other direction then i'll read it later*
okay so*i read about 60% of the spoilers and all i could gather was this.*

i just finished this after two days of reading.
the story is amazing itself...i enjoyed this somehow as someone who LOVES weak hero webtoon.
first of all yes i get that the teacher is annoying somehow but she has to be there in order for the story to goes on. she is the one that the author is using to make the plot going...she jumps here and there and does reckless things without thinking about the consciences. she thinks that she can make things right by herself, 81 chapters and she still doesn't wanna accept that SHE CAN'T...well i hope that her character develops a little at least.
personally i would have liked it more if the plot included the students ONLY because whenever there is a teacher involved the plot can go downhill but what can we do, it's another person's story. if the story involved first gamin's story and second sehyun's story and then maybe other characters similar to sehyun then it would have been more wonderful.
i wish this story would have been more focused on sehyun, half assed details are getting on my nerves somehow.
i am waiting eagerly to see other students character development tho...like the one who is number 1/220 or the girl who likes him.
FINALLY....I CAN BREATHE NOW THANK GOD (/TДT)/