Have you watched the latest episode of God's Gift? Dong Chan is dead? Are you sure? For real? Yeah, I know.. I can't believe it either.
This drama surely is full of surprises. I don't know what Dong Chan's thinking after he realized that one of two people must die, is either him or Saet Byul not Dong Ho or Saet Byul.
Well, the ending never showed the death of Dong Chan. What we saw is Saet Byul and Soo Hyun was walking side by side and at the end of the drama, there is flashback that Saet Byul asked Dong Chan about the end of the story of Mom, the child and the knight who saved the child : "What happened to the knight? Is he alive?"
We never heard what was his answer, thus it's an open ended drama. You interpret what you want to. Well, these are some alternate endings :