Yang Kaxiong was orphaned at an early age when his father died unexpectedly during garrison duty. The boy's distant uncle, a Mr. Zhou, was a vice-commander of the military stationed in Hezhou. Taking pity on the orphan, Zhou decided to raise Kaxiong as his own child.
Zhou had a daughter who was approximately the same age as Kaxiong, and seeing that Kaxiong was young, intelligent, and handsome, she took a liking to him.
The Zhou family were very strict on matters of social decorum and consequently the young couple's contact was limited to formal family dining.
Another relative, a young man by the name of Wu, was also supported by the Zhous, and he slept outside in the study.
One autumn night when Kaxiong felt insufferably hot he took a stroll under the moonlight to enjoy the cool night air. In the distance he saw the young Miss Zhou strolling towards him. By the end of the night the couple had become extremely intimate.
The next day he chanced upon her in the midst of her morning toilet but they simply exchanged smiles. From hereon in she visited him every night.
On one of these occasions Wu was disturbed by the sound of laughter coming from Kaxiong's quarters and he grew suspicious. Peeking inside, he saw Miss Zhou and Kaxiong engaged in sexual intercourse and this made him extremely jealous.
He resolved to pass this information on to Mr. Zhou. On hearing about his daughter's conduct, Mr. Zhou immediately went to the inner quarters and scolded his wife for her laxity.
In her defense Mrs. Zhou said, "How could this be? Our daughter shares my bed every night."
Zhou was still unconvinced so he found an excuse to cane Kaxiong and drove him out of the house.