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When he woke up, second-hand goods dealer Chen Yu found himself entangled with a strange brass ring - it could tear apart time and space, summon dragons, and it also hid the terrifying price of rewriting history! When the black dragon Dark Scale roared out from the ruins of the future, and when the white dragon Shisu emerged from the light under the guidance of observer Mo, Chen Yu was forced to be involved in an oracle war that spanned a thousand years. The rainy night when my father disappeared ten years ago turned out to be a key node for the resurrection of the Oracle itself; and Lin Wan, a policewoman armed with scientific instruments to track down supernatural events, actually has a secret connection with the ring pattern...