I forgot the title and almost everything else except for one arc. Basically the FL hops through worlds and in one arc she was (I believe) the holy priestess or something of that sort. She was dedicated to the Light God (ML) and later on had to exterminate demons and such. She was accompanied by the knight (idk if its the holy knight or the captain of the knights or whatever). She fell in love with him, thought he was the Male Lead. They were about to die but the Light God saved them. Turns out Carlos (not sure if that was the knights name but it was a C...i think) was the reincarnation of the Light God and then the FL stuck on earth for a long damn time until she went up to heaven or smthg and they lived together in the end.