Chronicles of the Dragon Emperor

Our MC gets a another chance at life reborn in the world of ASOIAF/GOT As Aemon Targaryen the older twin brother of Rhaegar Targaryen and Crown Prince of the seven kingdoms There will definitely be the exploration of different universe down the line Please any ides or suggestions will be deeply appreciated thank you. I'm new to the whole writing thing . so please go easy on me p.s I do not own anything form ASOIFAF/GOT franchise or any other franchise we will be visiting down the line