Memory Cancer Fairy

What you read is never a book, but a cancerous variant parasitic in your memory - the protagonist is □ (undefined blank character), and cultivating immortality means being eaten by memory. The plot will tamper with your memory: He was dead in the last chapter, and everyone will agree that he is alive in the next chapter, and you will still doubt yourself, "I remembered it wrong"; reality will be invaded by madness: your bedroom is the ward, your partner is the teacher, and the deliveryman secretly performs rituals to cultivate immortality. The more you try to remember the plot, the more confusing your real-life memory will be - calling a friend by the wrong name or forgetting your bank card password are all eating away at your memory. There are only two choices in the end: either recover and let this book completely disappear from your memory, as if you have never read it; or sink forever and let reality become a ward. You and I will both be crazy cultivators. Now, I already know that you are reading the introduction - are you ready to be parasitized by memory?