During an interview with Chinese media outlet Sina, Lee Jun Ki talked about his upcoming drama 'Scarlet Heart: Ryeo' and his popularity.

The actor revealed his weight loss for the drama and explained, "The director wanted me to have a sharp vibe like an injured animal . So I went on a diet for 5-6 months and lost 15kg (~33lbs). It was for my drama but I became more healthy and my fans loved it so I think it was a good choice. I also feel like I am getting rewarded for the tough times during dieting."

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To the question about his long-lasting popularity, Lee Jun Ki commented, "I'm not exactly sure what my charms are, but I think they like me because they love my productions and were touched by them." He added, "Not just my productions, but I am happy that Korean dramas in general receive a lot of love. I think I am living in a blessed time and it also makes me think I need to work harder."