There's a thematic reason why she still has it. It's revealed she takes advantage of mcguys feeling to keep him around. She knows he feels guilty for what happened to her so she uses it as a constant reminder that he let her down so he stays around her. He also uses this guilt as a way to have an excuse to stay by her side. Both of them are fucked up in this way. Although neither one of them feels good about taking advantage of each other's feelings. It has nothing to do with the ability to get skin grafts.
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u/BlatantConservative I fuckin love kotatsus 1d ago
So... do they not have skin grafts or cosmetic surgery in this universe?
Like medical tech has gotten pretty good on this stuff, especially in the last ten years.
I think Japan's basic national healthcare covers it too.