I Brought a Bookstore to Ancient Times

As a homebody, Jin Chang's greatest stroke of luck was finding a bargain and buying a small three-story storefront for next to nothing to turn into a bookstore. But before it could even open, she and the shop transmigrated to ancient times, where she became Jin Linyang, the fake heiress. She then discovered, to her horror, that she was also a doomed side character in a book who wouldn't live past the age of twelve. As luck would have it, Jin Linyang would turn twelve in just two months. Help! All she wants is a peaceful life. Let's see how she can defy fate and change her destiny.