Ordinary 15-year-old girl Lin Xiaoya accidentally obtains a bell capable of traversing time and space, and through a twist of fate, arrives in the Tang Dynasty, where she meets Yuanji, who is known by others as the "eccentric." To save her beloved cat Snow White, who is critically ill, and to find a way back home, Lin Xiaoya embarks on a fantastical adventure in ancient times alongside her friends. However, what she doesn't know is that evil monsters lurking in the shadows are also coveting her bell...