Who is that mysterious hooded lady in the last pages of Death Note manga?

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Does she have a name? I didn't know Kira had worshippers like this. I was glad to see her, it's nice to know people didn't stop believing in him even after he died such a shameful death, just like me. My God, if I was a shinigami, I'd kill everyone in that room and myself to save him. It felt so awful when he fucking lost it and begged Ryuk, just a few pages after standing there admitting that he is Kira with that crazy smirk in his face. It sucks that it wasn't L who defeated him. Light and L, they were equal. How I hate that Near kid! It was just... ridiculous. Is there an alternative ending where Light wins or at least gets arrested by L or something?
Who is that mysterious hooded lady in the last pages of Death Note manga?
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