House of The Dragon: Aemon Targaryen

Aaron, a 24 year old NEET, who for last 2 years has become an avid fan of fantasy and always wished to be in those world caught up with the Fire and Blood after watching the Game of Thrones Franchise Series House of the Dragon, While he was still reeling and thinking about the things he read, he was caught up in a freak accident due fire that burnt him and his place down, after going through something that excruciating, he ended up in a void where he met the messenger who represented God, God bestowed upon him a chance to reincarnate with his wishes as anyone who got Isekaied would. Will he change the world due to his presence or will it be as it was intended by the GOD of the world GRR Martin.
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PS: If it seems like a Wish fulfillment Fan Fic, Please Bear with it. It's a Slow Burner.
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I am a Amateur Writer, Any Suggestion or Criticism is welcome, English isn't my 1st Language.