
And saying “they’re not blood related it’s ok” get help. At the end of the day they’re STILL SIBLINGS their mother and father MARRIED if their parents had a child GUESS WHAT THAT WOULD BE THEIR SIBLING!!!
She will keep calling him oni-chan because that’s her BROTHERRR. Would you get with your family that’s not blood related to you?? If so seek further help. Thank you( ̄へ ̄)

my (half) cousin "got with" my sister's cousin (not my cousin), so call me immune to 'no blood relation but still has titles'
anyways, factoring in that's she's reincarnated and he's a sociopath; your parents remarrying doesn't make their kids your siblings.. (beyond the legal sense of course) call me emotional but that's a pretty special bond that neither of the characters express wanting to have
but I watched Clueless so, whatever im biased

If you can’t differentiate fiction from reality then you’re the one that needs serious help. This is a horror/mystery manga with no tags of it being romance so this isn’t being advertised as the plot/couple being ideal or even aspirational. We all can choose how to view these stories but cmon atleast view it in a broader context. If you cant wrap your head around these type of topics and dislike these type of plots then I recommend you should stick to shoujo since it sounds like you cant handle the idea of complex relationships.

First of all, Luca with his “I’m not a child” attitude he definitely went back in time or something his character is too different from the original.
It was even hinted but for whatever reason Judith doesn’t think it’s possible??
Then we have Judith who not only lied about being Luca’s mom (someone please remind me why she did this) but she decided to stay with him even after seeing he’s not the original cute kid and can look after himself… like gurl what is your purpose??? Also would have liked no romance. At this point she’s just there for the man… who wouldn’t be.
Thank you for hearing my Ted-talk (●'◡'●)ノ

First of all, the reason why FL acts like Luca's mother is to protect him while she is with him. Because she comes from a low-born family. She thinks that if she tells the duke's family that she is his aunt, she will be sent away and the high society will not be able to protect luca.
She thinks about Luca going back in time in episode 90 or so. She doesn't think about it beforehand, she's trying to get used to her own life and I think it's because she thinks luca's character written in the book doesn't match up with reality or he's trying to act more like an adult around her aunt when her uncle is also there.
And in the beginning, her aim is not to die. (according to the book he read, he was deceived for money by relatives who wanted to take over the duke's seat and were eventually killed.)
Who wouldn't want a ml like this? He loves fl. He takes whatever she wants or doesn't want. He protects her. He's handsome, rich, has a good family and he loves Luca enough to die for him. (According to the book FL read before she was reincarnated, ml was dead)
Also, if I remember correctly, in the 100-110th episodes, she tells the full reincarnation events etc. Sorry for my English, I used trans.
Skelly died and only his bones remained when they resurrected him hence why he’s a skeleton!
I’ve been reading this for so long I can’t even remember if they mentioned his origin
They haven't said who he was resurrected from yet. The only thing we know is that he was resurrected with the body of a woman.
I've seen the raws. They will eventually reveal his origins.