What did Sangkuriang have to do to mary DayangSumbi ?

Sangkuriang fulfilled the request of Dayang Sumbi   to make a boat for one day.

Once, a long time ago, Dayang Sumbi gave birth to a baby, named him Sangkuriang. But, Dayang Sumbi never told Sangkuriang who his father was. So, Sangkuriang forced her to marry him and she told him that Sangkuriang had to build a boat for their honeymoon. Just in one night. In the night, Sangkuriang called his friends, ghosts and forest fairies to help him.

Hope this helps 🙂