My Senior Sister Is a Wicked Female Supporting Character

At the dawn of chaos, the ancestral gods created heaven and earth and established the Six Paths of Reincarnation, decreeing that all living beings must part from loved ones in life and death. The living gradually enter the cycle of reincarnation, while the dead forget their past lives and are reborn. Life and death: these are the boundaries.

The first time she enters the mysterious space, an ancient book radiating dazzling golden light floats in the center of a hazy world. Four large characters are written on it: “The Sutra of the Beginningless Way.”

The second time she enters the mysterious space, the sutra has turned into a storybook. It tells the legendary life of a girl who transmigrated, and after reading the whole book, Song Yaoqing is astonished to discover that the protagonist comes from the same sect as she does.

And why do all the characters' names sound so familiar?