When memories can be extracted, bought, sold, and transplanted, how do you prove that "you" are still you?
After Levi sold an "irrelevant" memory, he found that his consciousness was beginning to collapse. The clues left by his fiancée lead him to a dark truth: his memory is the "Holy Grail" coveted by black market giants. Now, he must decipher this deadly conspiracy about the immortality of consciousness before he completely disappears.