I love Korean dramas but sometimes you get the feeling that the plot is a bit over the top.
In my opinion, this story could happen this way. There were no blatant fighting scenes where one person made 20 others harmless, the corruption was not excessive and it was not a triangular relationship (boy 2 wants girl 1, but girl 1 wants boy 1 who in turn wants girl 2). It has action, family, a little love and friendship. The only thing I think is a shame is that investigator Kang takes all the laurels and presents himself as if he would never give up until he has the true criminal. But it was actually Lieutenant Oh who investigated the matter at the beginning and it was also him who continued to investigate after his cousin's conviction. There is also a pale aftertaste when investigator Kang is ready to make the same mistake, just to get Jong Tae behind bars.
In my opinion, this story could happen this way. There were no blatant fighting scenes where one person made 20 others harmless, the corruption was not excessive and it was not a triangular relationship (boy 2 wants girl 1, but girl 1 wants boy 1 who in turn wants girl 2). It has action, family, a little love and friendship. The only thing I think is a shame is that investigator Kang takes all the laurels and presents himself as if he would never give up until he has the true criminal. But it was actually Lieutenant Oh who investigated the matter at the beginning and it was also him who continued to investigate after his cousin's conviction. There is also a pale aftertaste when investigator Kang is ready to make the same mistake, just to get Jong Tae behind bars.