Song Joong Ki and Chun Woo Hee will make a meaningful promise on the next episodes of “My Youth”! SpoilersOn the previous episode of “My Youth,” Sunwoo Hae broke up with Sung Je Yeon after confessing that he was suffering from an incurable illness. In one photo, Sung Je Yeon leans on Sunwoo Hae’s shoulder with a warm smile; in another, the couple embraces each other while enjoying a romantic night at home. Later, Sunwoo Hae’s face betrays a complex mix of emotions as he reads a letter left behind by Sung Je Yeon while she is asleep. The “My Youth” production team teased, “Episodes 9 and 10, which air today (October 3), will depict the poignant promise between Sunwoo Hae and Sung Je Yeon.