Yin Yunkang nodded and he quickly walked away. The Yinkang Clan was trapped within Heavenly River and they'd been living in the State of Heavenly River for a long time, which almost completely cut off their access to the outside. Hence, the ladies in the Yinkang Clan were often married to the men in the same clan. Though there were a few cases where the ladies married men from the outside, instead of the ladies being married out to other families, it was the men being married into the wife's family.
But since the Yinkang Clan was cursed by Heavenly Monarch Tian Yuan, if their people got onto the land, their legs would turn into fishtails, stripping them of the ability to walk. Thus, due to their inability to walk on land, there were barely any outsiders that were willing to marry the ladies of the Yinkang Clan. After all, no one wished to be trapped within State of Heavenly River forever.