On the recent episode of 'Strong Heart', Leeteuk revealed the reason behind his opposition of his sister to debut as an actress.

His sister, named "Park Inyoung", said that she wanted to be an actress after she came back from studying overseas in New Zealand but not only her mum opposed it, her brother Leeteuk opposed it strongly as well.

Leeteuk stated that, although she was his family member, he had to be cold-hearted and said the truth, that he believed that his sister was not pretty enough to actually be an actress.

Still, he said that although his sister never properly learned how to act, she was still very passionate. Ending on a warm note, Leeteuk wished her good luck with her acting career.

Do you think Leeteuk's decision was right?