(KBS)

Associates of KBS2 drama “Descendants of the Sun,” released a yearbook photo Sunday of the drama’s male protagonist, Yoo Shi-jin -- played by actor Song Joong-ki.

In the photo, Yoo dons a cadet’s uniform as he smiles for the yearbook portrait as a member of the graduating class of the Korea Military Academy. The photo appears to have been taken during a shoot for the drama, but details are still under wraps ? as an episode describing his years as a cadet has not been broadcast yet.

“Descendants of the Sun” airs every Wednesday and Thursday at 10 p.m. on KBS2 and the Chinese online streaming service iQiYi.

By Jung Min-kyung (mkj1105@heraldcorp.com)