At the press conference for tvN's 'Youth Over Flowers - Africa' on February 18, actor Ryu Joon Yeol talked about his 'Reply 1988' co-star, Park Bo Gum.

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"Park Bo Gum is such a man of few words that during the six months we were stuck together filming for the drama, we never conversed," Ryu Joon Yeol revealed, surprising everybody. �"However, while we were vacationing [for the show], we were stuck together, and we got friendlier and closer while talking a lot."

Mentioning a bit more about Park Bo Gum's character, Ryu Joon Yeol relayed, "Park Bo Gum is so cautious and silent that through this opportunity, I was able to know his inner thoughts well and we became the closest we've ever been."