Xie Hui was trapped in a weird infinite loop.
Not a copy, not a task, but his own existence - every seven days, his memory is cleared and he wakes up in an old bookstore called "Yiguang". The countdown in his mind was as red as blood, reminding him of the never-ending return to zero. He was once a top "rememberer", but now he is a broken man who can't even put himself back together. In the long cycle, he got used to strangers' unexplained gazes and inquiries, until the man named Gu Ye opened the door of the bookstore.
At the same time, Sui He and Bai Yi, members of the "Lighthouse" operations team, are tracking a series of strange events in which the real world has been "eroded". All the clues vaguely point to that inconspicuous used bookstore, and the thin young man in the bookstore who seems harmless but is shrouded in a huge mystery - Xie Hui.
Xie Hui must find his own truth among the fragments of countless worlds before he is completely lost.
Ps: Do you feel like you are a new person after not seeing each other for two or three weeks? (I'm serious! (Serious face) (Quietly) (Pretend I didn't say it)
Purpose: In the endless reincarnation, I will find my name for you