In response to the MCs' compliments on her fluent Korean, Sana explained, "I learned Korean by watching variety shows. To be honest, I am good at speaking Korean, but sometimes I pretend like I don't understand. For example, when I get caught eating. I pretend like I am bad at Korean." 

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Sana also explained that the monthly Korean assessment during her trainee days helped her improve. She added, "Later on, I had to be an interpreter for other international trainees."