My Dearest Nemesis

In high school, Baek Su Jeong developed a crush on an online player named "Black Dragon," only to be humiliated when he turned out to be an awkward middle schooler. Sixteen years later, Su Jeong works at Yongseong Department Store, where the new head of strategic planning, Ban Ju Yeon, turns out to be "Black Dragon." Still holding a grudge, Su Jeong must navigate their past and potential for a new relationship. ~~ Adapted from the webtoon "He’s a Black Dragon" (그놈은 흑염룡) by Hye Jin Yang (혜진양).

Synopsis: MyDramaList