Fukushuu o Koinegau Saikyou Yuusha wa, Yami no Chikara de Senmetsu Musou Suru - Ch. 128

[Dimswitch]

Answer to your question:
Neither

Arc summary + Ending:
The Book is about Victoria's backstory, and ends with Raoul proposing to Victoria again, but this time he seems to care about her. Waiting for the next book to see if it's genuine or not.

Spoiler

in what manga chapter you think her backstory will show? do they exactly follow the LN? Is her backstory well-written?

 

[BrandonOtanez]

Spoiler

in what manga chapter you think her backstory will show? do they exactly follow the LN? Is her backstory well-written? [/SPOILE

Spoiler

They have been following the LN pretty well with only a few minor changes. I think her backstory will start in the next chapter or two