I expected so much more considering the subject matter (Japanese atrocities and occupation of Korea, unit 731) at the beginning...but it ended up being super boring. i couldnt wait for it to end. The characters are underdeveloped. And the love story they forced into the series just didn't fit or make sense and took away from the rest of the story. it was like they were trying to do too much. it was highly fictionalized, it did not dive deep into what actually happened at the time, or what unit 731 did beyond just vague "human experimentation." the whole series ended up coming across as a bit too vapid for me. personally I would have preferred a real historical drama regarding this subject, with real names, real people, real events, real places, such a drama would have served the subject matter better. I just feel that the way this show treats the subject matter is too light and even maybe trivializes what happened. would have liked it better if it was more deep and serious. I did loved Suho from EXO's song that was part of the soundtrack.