On October 16 episode of JTBC's television show 'Knowing Brothers', Choi Ye Bin, Jin Ji Hee, Kim Hyun-soo made a guest appearance.
In this episode, Choi Ye Bin, Jin Ji Hee and Kim Hyun-soo were seen talking about their mothers in the recently-ended drama 'The Penthouse: War in Life'.
Choi Ye Bin said, "Kim So Yeon treated me to dinner several times while we were shooting the drama together. She even gave me a birthday gift last year. It was perfume."
Jin Ji Hee said, "Shin Eun-kyung gave me matching slippers one time. She gave me a hug after I filmed a scene where I had to let lots of emotions out as well."
Following that, Kim Hyun-soo shared about Eugene, "She also bought me dinners, and actually sang songs with me where I had to sing. That really touched my heart."

It was Choi Ye Bin; Kim So Yeon replied the fastest out of the three 'mothers'.
In her reply, it said, "Oh, Ye Bin! What a coincidence. I was actually choosing your birthday present when you texted me."
It also said, "It's your birthday today, isn't it? Happy birthday! I believe this purse will go with you very well. See you on the seventh!"
Along with these sweet messages, Kim So Yeon had sent Choi Ye Bin a mobile gift voucher for a beautiful purse.
Choi Ye Bin called Kim So Yeon right away, and burst into tears while thanking her.

She went on, "I got so emotional during shooting, but I tried my best not to cry. When it was all over though, I couldn't stop it anymore. As soon as I looked at Kim So Yeon, I just cried. I think I'm still emotional from then."

(SBS Star)