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Finn
Finn Mertins is the main character of Adventure Time and gender swapped version of Fionna. He's an a adventurer alongside his dog, Jake and his long lost brother, Leonard. He did boom - boom on a leaf and cried until Jake's parents found him on the leaf but when his adoptive parents took him to safety is unknown. His real family (not his adoption family) were revealed in his altenative universe.

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