Can someone please explain what's goiwon in this au and how did the original valeta die?

She didn’t die it’s just a parallel world

Then why was the ML talking about her death at the start of that chapter?

If you mean our Valeta (the one we read since the beginning) shes still alive. If you mean the Valeta from the same world as the ML (parallel one) then I’m assuming she died due to the crown prince or smth cause originally in the ‘book’ she was just a side character who was meant to die. NOW if you mean the New Valeta the parallel MC brought then she wants to die but was brought to him since he was bored.

I meant the valeta from the same world as ML, thank you for explaining. I understand better now!!