The Sea Dragon Natblida from the Sky

Y/n Valeryon was the trueborn daughter of Rhaenyra Targaryen and Leanor Valeryon but during the dance of dragons she had died when her uncle Aemond accidentally knocked her off her dragon into stone rocks killing her. After her death the war stopped as she was the one that was loved by all even the queen Alicent Hightower loved her like a daughter. Everyone mourned her death, even Aemond who felt guilty about killing his favorite niece. After her death Aegon didn't want the throne and gave it to his sister as it was rightfully hers in the first place. After a few years after Y/n Valeryon's death the blacks and greens are transported into a room and watch Y/n new life of her journey to the ground and becoming a skilled warrior, she is Lexa's second.

Octavia Blake x G!p Reader

Idea is not mine