Who is Mary Sue, te ask?
She is a pest, a scourge, a CURSE upon the world of fiction; a dull, cliche character who mostly invades the fan fiction universe (especially in fandoms like Lord of the Rings o Harry Potter), but can also be found in original work, TV shows, books, movies, etc. In fan fiction, she's usually the fangirl's way of inserting herself in the story and pairing herself up with the cutest/hottest character.
Sounds good, heh? Read more;
link After Leggere that, still not sure, is character Mary-sue? Take a test!
The Universal Mary Sue Litmus Test
link The Writer's Mary Sue Test:
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