I think the novel/manga Lucia is similar to this. Lucia had similar character with Maxi but after she reincarnated she became strong and confident
If someone wants to read a Historical fantasy I'll most definitely suggest them to read 'Lucia' (●'◡'●)ﾉ
But on the side note both the characters of Vivian (or well Lucia) are very different.
And Lucia never reincarnated rather she saw her 'possible' future through her dreams (hence she strived to change the upcoming tragedy by taking matters in her own hands as a mean of survival).
Everything aside 'Lucia' is an amazing piece of writing and so is 'Under the oak tree'.
I already read Lúcia :( but thank you!!
can someone recommend me some webtoon / novel like this?