On March 31, Yoona guested on SBS' television show 'My Little Old Boy'.
During the talk, one of the hosts Shin Dong-yup asked, "You're a quite experienced actress now. Could you tell me who you think you had the best chemistry with?"

When asked why, Yoona explained, "Cho Jung Seok really cared for me throughout shooting."
She continued, "He's the kind of guy who would have a great chemistry with anyone in this world."

During the shooting, the production team once noted the two stars were getting on well with each other although they were 10 years apart.

(Lee Narin, Credit= SBS funE, SBS My Little Old Boy)
(SBS Star)