Question

What secret does kun-thi use to blackmail Nathan in order to obtain rice?

Answer 1

When Kun-thi was on the brink of starvation, she resorts to blackmailing Nathan to take some of their precious rice by threatening him that she will reveal her relationship with him and the two of her sons are his. Nathan had no choice but to give away their rice to Kun-thi.

Answer 2

In order to obtain rice, Kun-thi blackmailed Nathan by threatening to let everybody else know about his relationship with her. In fact, Nathan was the father of two of her children; one of them before he married Rukmani and the other after he was already married to her.