I actually rage-quit this Drama and just FF'd through the last three episodes because of a common problem with K Dramas - violent crime is excused and completely overlooked. In this Drama, the competitor firm is guilty of multiple kidnappings, assault, theft, breaking and entering, and many other crimes, and yet NO police action is taken. Even the "good" cop is shown as being utterly fixated only on tech crimes, and doesn't care at all about the fact that people were kidnapped and physically hurt by the other company. The company which actively and violently broke the law is shown repeatedly getting a free pass from the police AND profits from its criminality. And the second lead gets a free pass for his active involvement in all of those crimes.

As a simple love story, with some interesting commentary on the nature of identity, the Drama had promise, but this weird K Drama fixation on violent crime being disregarded totally snapped me out of the mood of the show. YMMV, but for me, this was a good idea ruined.