The world in the book overlaps with reality, and the scenes and creatures in the book descend, bringing disasters and infinite possibilities to reality. These overlapping territories are called the book world. Wealth, power, and even eternal life are close at hand, and countless People are crazy about it, and rush into the world of books. And these book worlds that come appear in the form of girls, they are called phantom books, but the protagonist likes to call them book girls. After Niang signed the power of the contract, as an LSP and a collector, she embarked on the difficult (wonderful) journey of collecting Shuniang.