Quote from said wikipedia page:
"Involuntary, or servile, concubinage involves sexual slavery of one member of the relationship, typically the woman."
This is possible to happen to Wang Xiaoning's wife, Yu Ling, because of them being openly involved in this situation. Possibly worse things happening to Wang himself. Because the chinese just roll like that.
Quote from said wikipedia page: "Involuntary, or servile, concubinage involves sexual slavery of one member of the relationship, typically the woman." This is possible to happen to Wang Xiaoning's wife, Yu Ling, because of them being openly involved in this situation. Possibly worse things happening to Wang himself. Because the chinese just roll like that.