As Heechul promised, he explained on 'Ssul Jeon' how he came to cameo on the star-studded drama 'Heirs.'

SEE ALSO: Super Junior's Heechul teases upcoming cameo on 'Heirs'

You may not know her by name but Kim Eun Sook is the famous screenwriter of many popular dramas, such as 'Lovers in Paris,' 'Lovers in Prague,' 'Secret Garden,' and most recently 'Heirs.' 

On this week's 'Ssul Jeon,' Heechul relayed the story of how he first met this screenwriter.  Three years ago, he went to a place to drink and he was introduced to her, saying he should know of her because she was a famous screenwriter.  However, as he does not watch many dramas, he said he did not know her.

Heechul said on the show, "She also has a strong personality so she was like, 'Hey, you don't know "Lovers in Paris" or "Lovers in Prague"?' and I said, 'I've heard of them.'  She told me, 'If you're like this, I will never cast you in a drama.'  So I told her, 'That's okay.  I have a lot of other stuff to do.'"

The female MC jokingly started comparing this story to the situation that would be typically found in a romantic comedy.  

Kim Gu Ra pointed out Kim Eun Sook was fifty--whoops, forty--and had a husband. Heechul said she had a strong personality so Kim Gu Ra may need to watch out for that age-related slip of the tongue!

Either way, Heechul said they got closer through talking.  Eventually, Heechul asked her for a casual interview so he could talk about it on this show.  She jokingly said only she could think of things like the "foam kiss" ('Secret Garden') and "Baby, let's go" ('Lovers in Paris').  She wanted Heechul to tell them she could fool around saying things like that and in return for the interview, Heechul needed to cameo in her current work 'Heirs.'