I see death flags. For her to catch a fever RIGHT after they boned AND the flashback of the clone is TWO STRIKES. Plus bonus flag of her also KNOWING pertinent information to the progression of the story that she didn't get to say to the MMC ... she's pretty much dead. I'm sorry I mean she DED.
So, Elisa has a chronic disease and cannot have children. Mira is a clone and cannot survive without constant treatment. Who will be the one to die and have her organs transplanted to save the other?
Well, it's obvious Erisa will die because of her poor health. Chronic disease + multiple injections of virus and others things....it's a miracle she was still alive until now.
Hope Mira condition will improve, her whole life until now was crap.
Especially when she had to help/serve the one she like, and he is dumb as a brick.
At least now we know why she couldn't go with him.
Well that's just fucked up, she was basically raised and indoctrinated into loving and serving Reito, the only reason for her existence is that Elisa wasn't able to have children, she only lives to be impregnated,
Mira organs are unstable so the only way would be to use Elisa organs to "save" Mira.
Man this is kinda sad, man chasing whole manga after his loved one only to know she has a chronic disease and there is probability for her to die. I believe myself that it gonna be stupid if Elisa gonna die now after the waiting for their reunion through like 60 chapters.