In a world where the "Rememory" device allows people to relive fragments of their past memories, many choose to escape reality and immerse themselves in nostalgic reverie. This widespread addiction prompts the government to ban the device. Unable to let go of her past, Alexia decides to relive her cherished memories one last time before the system is shut down. But as she embarks on her nostalgic journey, she encounters an unexpected guest in her memories, leading to unforeseen revelations and a confrontation with reality.