The heroine Su Qingyuan (a 20-year-old history undergraduate, gentle, intelligent, and strong in hands-on skills) travels through the Dajing Dynasty because she touched the "Jade Pendant of Prince Jing" in the museum; the male protagonist Xiao Yu (a 24-year-old Prince Jing with great military exploits but was alienated due to rumors of "restraint", cold on the outside and warm on the inside, thoughtful and considerate), the jade pendant is a relic of his mother and concubine. The "jade pendant bond" is used to connect the plot, and the main theme is "long-lasting sweetness + light strategy", without misunderstandings and a happy ending.
