SECOND LEAD DO NOT ENTER

END
FL is reincarnated into a sick lady, she is really trying her best not to die like the og novel, and there is ML who is a guard(?) sent by her father.

I swear this one made me cry so many times but the tears made up for it because this story is really good.

END
FL is reincarnated as the estranged older sister of the ML's deceased wife in the novel OG. FL loves her younger sister so much that FL is the one who marries the ML.