The February 8 episode of tvN's 'Life Bar' welcomed 'Prison Playbook' actors, Park Hae Soo and Park Ho San, as the guests. 

In the recently ended drama, Park Hae Soo and f(x)'s Krystal played lovers. Regarding his partner, Park Hae Soo said, "It was comfortable from the moment we met and Soo Jung (Krystal) took care of me well. I saw her walking towards me and she just seemed like the character herself."

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He then shared about his kiss scene with Krystal. Park Hae So said, "The kiss scene was pressuring because I've never done it before. During our first kiss scene, the directors even demonstrated for me."

He continued, "The kiss scene lasted for a long time. We didn't have any NG (cuts) though. Our first NG was actually broadcasted. After the kiss scene, I pretended to be mature. But I think kiss scene definitely makes you get closer. I think because the feelings linger."