When Thor travels back to Asgard, he sees his deceased best friend Y/N alive again—before her death from an incurable illness. But what he witnesses is something he was never meant to know: Y/N sharing an intimate, hidden relationship with Loki, the disgraced prince of Asgard, a love kept secret from everyone, including him. Years later, after the Blip and the fall of half the universe, a time heist goes wrong and a past version of Y/N is pulled into the future during Thanos’ arrival. With no knowledge of her fate or her death, she is thrown straight into a war that has already been shaped by her loss—forced to fight a battle that begins long before she understands what she’s walking into.