Mountains and Sea in the Mirror

In ancient times, an unknown monk used himself as a cauldron to refine an entire "mountain and sea realm" into an ancient bronze mirror, trying to avoid a "Great Nirvana" sweeping across the heavens. After the Great Nirvana, the mirror world became the only surviving intact world, but the mirror shattered into ninety-nine pieces, scattered in various eras and regions in the outside world. Each fragment carries part of the rules, part of the memory, and part of the power of the mirror world. In contemporary times, a declining family, the Shen family, dug out a rusty lens under the foundation of their ancestral home.