What made this particular setting—Session 03—noteworthy was the interruption.

Unlike traditional Korean moon jars (which are usually pure white and spherical), Set 03 introduces subtle variation. Depending on the specific firing batch, the glaze on the 03 series shifts from a milky opalescent white to a soft, ethereal celadon blue-grey. This "blue moon" variant is what makes Set 03 the most sought-after sub-series in the collection.

The mysterious client appeared at dawn, viewed the painting, and nodded in satisfaction. "This is 'Kumja Moon Set 03'," they said, leaving a generous sum of money and disappearing into the morning fog.