A pair of sisters, Bai Yu and Bai Ying, the daughters of creation, have experienced worldly events and traveled to various dimensional spaces such as the second dimension, the third dimension, and the fourth dimension to experience various major and minor events. The beautiful and bitter story about family, friendship, and love tells the story of human nature, the philosophy of life, and the interpretation of the meaning of happiness. (This article is from the perspective of two people)