A red rope and a copper coin, by chance, led to the time-space meeting between Si Zi and Li Qin. Princess Xiao Sizi, Princess Chengyang, and Princess Gaoyang of the Tang Dynasty travel through time and space and enter the modern era. Li Qin leads the princesses to unlock novel experiences such as food, square dancing, and instant noodles, allowing modern knowledge to passionately collide with the childish fun of the Tang Dynasty. The laughter and growth that transcends time and space, the warm daily life that blends ancient and modern times, every moment contains healing and surprises, starting a journey of joyful enlightenment across the ages.