Nam Joo Hyuk, BTOB’s Sungjae, and Kim So Hyun in New Behind-the-Scenes Shots from "School 2015"

New behind-the-scenes pics from the filming of KBS‘s “Who Are You – School 2015” show co-stars Nam Joo Hyuk, BTOB’s Yook Sungjae, and Kim So Hyun having fun on location.

The show stars the trio as students in their second year at Sekang High School. One photo gives viewers a glimpse at the dynamics of their characters’ relationship, with Yook Sungjae appearing to be crushing on Kim So Hyun while Nam Joo Hyuk plays it cool.

The director of “Who Are You – School 2015” says, “The three of them met for the first time at the first script reading. While they were sitting there, you could tell just from looking at them that they were heart-warming and had chemistry.”

The first episode of “Who Are You – School 2015” will be airing on April 27.

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See also:

BTOB’s Sungjae, Kim So Hyun, and Nam Joo Hyuk Confirmed for “School 2015”