Ziwei Erkang chased.

Swallows fly, chasing in May, Master Erkang loves crape myrtle, and the emperor chases Princess Xiang on horseback. Galeries Lafayette turned black with anger. Sunny, don't worry, I will send Xiao Jian to marry you.

Well, there are many other versions, such as:

Swallows fly, may chase, Erkang falls in love, the emperor fights for concubines, and Sister Rong is a turtle (I like this sentence: p).