On the April 23 airing of SBS Power FM's 'Choi Hwa Jung's Power Time', Kang Seung Yoon is asked if his members watched his drama. 

Kang Seung Yoon answered, "They did (watch) much more than I thought," and revealed, "Song Min Ho is already a huge fan of dramas."

To this, Song Min Ho said, "I don't watch dramas but I watched (Prison Playbook) because of Seung Yoon. But after the first episode, I didn't even need Seung Yoon", implying how he got deeply into the interesting story. 

Next, Kang Seung Yoon is asked if he was satisfied with his acting. He replied, "No, I saw my problems when monitoring." He also shared, "Jung Woong In sunbaenim gave me acting advice. He would casually pass by and tell me, 'I think it'll be better if you loosen up here'. He said it indifferently but it was the best."