This drama is perfect. I watched it 2 time at Netflix.
SHK and all actor/actress do their job perfectly.
they are really match with the character based on their role.
Story line also super and very good.
Their character when they are teenager also very good and make it perfect when they are become adult.
logic of each character also make sense.
Usually SHK always play as good character and this is first time she did in revenge drama but she can do it perfectly.
LDH is younger than SHK but he can act cool and look mature enough to SHK.
the rest character also super, include Jung Sung Il, prior i never watch his drama and will start to see his other drama. He act cool and the reason why he choose his wife also make sense. he need someone bright :)

Can't wait for next session!