The female lead is probably one of the most insufferable characters you might encounter in a drama. Despicable and repulsive through and through. Props to the actress for putting in the effort to sell it as such. The drama was destined to fail with how they adapted it. It suffered from the same problems most long-running webtoons suffer from, by over bloating the material with events, abandoning plotlines and threads along the way and lacking coherent structure as it progresses. Unfortunately, they forgot to accommodate to what a live action format might mandate. The leads, Joo Da and her love interest, were an example, they were used to kick start the series of events just to be worth less than a background white noise later on, despite their core involvement in the concept early on. The concept had a lot of potentials but the end product barely serviced a story, let alone, something watchable.