Drama was good but ML was like a habitual liar. At start lying was unavailable but after that at so many points he lied or hided thing without being necessary just to create unnecessary angst. Plus Kim YongJin was killing people so recklessly how was police declaring every death as natural death.
Drama had good moments and was not that boring but didn't like the concept or how FL justified it acting like she is doing everything for the sake of humanity.
At the start drama was good the only problem was that FL a little annoying but then the drama itself started to get annoying, it felt like bad guys kept on winning and good guys kept on loosing and it doesn't change until the end.
How they solved cases: 🤡🤡🤡
Drama: ☠️☠️☠️