Hong Jong Hyun
Hong Jong Hyun recently finished his last drama Scarlet Heart: Goryeo alongside IU Facebook/Hong-Jong-Hyun

Hong Jong Hyun has opened up about his Moon Lovers: Scarlet Heart Ryeo co-star, IU. In the series, the 26-year-old South Korean actor played Wang Yo, the third prince in line to the throne and she gave life to the character, Hae Soo.

In an interview TV Report, Hyun gushed about the 23-year-old singer, whose real name is Lee Ji-eun. He said: "We started working together in the middle of the series. I listened to IU's music a lot before that. I knew she wrote and composed her own songs, and I always thought of her as a sensitive person," adding that he was right about his impression of her."

Hyun added: "Because she's someone who does music, she was able to express sensitive feelings well. She was also mature for her age. She looks very small, thin, feminine, and like she'd get tired soon, but she's not like that at all. I don't know if it's because her stamina's good or if she just withstood it, but she has more strength than an average man. She held her form from beginning to end."

He concluded: "Though acting isn't her original career and she's still gaining experience, she was extremely professional."

Moon Lovers: Scarlet Heart Ryeo ended its 20-episode run on1 November. IU shared her excitement about the drama's popularity.

"Hello, my name is IU, and I play Hae Soo in 'Scarlet Heart: Ryeo.' I've just heard that our drama jumped from second to first place on DramaFever. I'm so happy to hear such great news! Thank you so much for loving our drama! Please continue to show your love and support for our show. Once again thank you to all the DramaFever viewers and please continue to show your love for us!" she said.