GOT/ASOIAF: Reincarnated as Dark Angel - Guardian of the House Stark

A teenage girl, who is a fan girl of Jon Snow from Asoiaf, died by truck (truck-kun) accident. And she was given a chance by ROB to reborn in ASOIAF, after the time of Robert's Rebellion and Greyjoy's Rebellion. With her wish, she gains the power and appearance of Olivia - Dark Angel from Rage of Bahamut or Granblue Fantasy, and became House Stark's Guardian Angel. After ROB granting her wish, decided to send her to the Westeros at Winterfell, Stark's ancestral home, as he observed her from the distance. With the girl's new identity as Olivia Morningstar, she made an oath to protect the Promised Prince and fight alongside him, and to protect the House Stark from the Southern's scheme of betrayal, corruption and war. The Westeros and Essos will know her name as Olivia Morningstar, the so-called Angel who betrays The Sevens and sided with Old Gods, Guardian of House Stark, Defender of the North, Protector of Prince that was Promised, the Will of Freedom and Justice, Fallen One, and the secret fangirl (lover) of Jon Snow - The White Wolf. (Pairing: OC (Olivia - Dark Angel) x Jon Snow) (Expecting Jon Snow or other Stark family as OOC for some will be blessed by OC or the Old Gods. Even different Gods and Night King with his army, except for Old Gods, might become OC's enemies for they deemed her as a threat.) Note: I don't own ASOIAF/Game of Thrones or the character Olivia - Dark Angel from Rage of Bahamut/Granblue Fantasy, they belong to their respected owners or authors.