chapter 32 Marriage has a running-in period

Last night, Mila Hai intentionally waited until William Zhan came home late at night, and they agreed to go to the market to buy vegetables on Saturday morning. Mila Hai had called the old lady last night and knew that her husband's family, who came today could probably sit for two. They decided on having three tables, as William Zhan's group of brothers were also coming over.
What the old lady meant was that she and William Zhan had already received their marriage certificate, and she was the...