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The producer of the show explained the reason they wanted to have Onew and Jung Chae Yeon in the cast, saying, "I was looking for nice kids like Onew and Jung Chae Yeon. I wanted to film this with kids who are too busy to eat well." 

Chef Baek Jon Won added, "Onew and Jung Chae Yeon ate anything and everything I made. Of course, I cook well. But because they ate my cooking so well, I had to think hard about the next meal. The managers who came with them were being bossy by being too concerned about what they were eating. I felt bad for them."

The chef also went on to talk about how he succeeded in making both of his co-stars gain a bit of weight, sharing, "I actually got them to gain some weight. When I saw them again they were skinny again, so it made my heart cry. It made me want to take them in and make them gain weight again. It's too bad that they're idols. They can eat anything, but because they're watching their figures they weren't able to eat well." 

It sounds like the chef really has a soft spot for Onew and Jung Chae Yeon! You can catch the cast's adventures in Kudat, Malaysia beginning September 23 at 9:15 PM KST!