The initial concept held potential, but the series ultimately disappointed due to its flawed storytelling and underdeveloped characters. It didn’t require much time—beyond the first couple of episodes—to notice significant problems; the plot felt fractured, suggesting a lack of clear direction from the writing team. Things became particularly problematic when the storyline involving Kyung Ja & Jay took center stage, leading to a loss of narrative consistency. The drama struggled to maintain any sense of cohesion following that point. The villains’ reasons for their actions were poorly conceived, and the depiction of an adult's inappropriate fixation on a young girl was especially troubling. Although it seemed like the creators intended to combine mystery elements with dramatic ones, the final product didn't succeed, resulting in more annoyance than enjoyment.

Source on TMDB