Double S 301 appeared on 'Cultwo Show' on June 9!

On this day, member Heo Young Saeng talked about his friendship with actor Lee Jae Hoon. He revealed, "Lee Jae Hoon was my senior in the military. In our relationship, I usually call him 'Father.'  We're much more comfortable together than one might think. When it comes to age, he is two years older."

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The DJs said, "His military status was higher, so wasn't it difficult?" and Heo Young Saeng admitted, "As expected, it was difficult."  When asked if he kept in touch with the actor even after his drama 'Signal,' Heo Young Saeng said, "We contacted each other sometimes. If I'd contact him saying I was enjoying 'Signal,' he would contact me back when he had the time."