I really liked this drama and how the pacing was fast which kept me on the edge of the seat the whole time. I really want to give 9/10 but the amount of flaws and how the story had to be re-written lowers the rating a bit unfortunately.

The biggest flaws I wished they changed:
- how is it that they decided to attack Myeong gil & his team but decide to sit back & relax. They totally let their guards down, how could they not have thought their would be retaliation and I just felt so sorry for the grandpa's 2 friends that were helping him carry out the mission. It's so dumb to me how Dooyoung (leather jacket guy) has all his info at the hideout where Myeonggil was able to retrieve which led to his death. Also how is it that the grandpa & his 2 friends didn't make the effort to change their names/identity knowing that MG knows them. You'd think these guys would be smarter knowing who they're dealing with
- the grandpa's 2 friends died too soon. they weren't able to really show how trained & experienced they claimed to be. we could've gotten even more fight scenes & development from those 2 characters that I've come to like, just unfortunate and unrealistic how they let their guards down like that (I'm used to watching action but seeing the grandpa & his 2 friends death was just so horrible for me b/c their characters were made likeable)
- tell me how some of MG's guys didn't die after being sliced in the throat? Also feel like the tank dude should've been taken out around the same time. On top of that Woo jin's attack & the amount of blood he lost just doesn't make any sense to how he survived
- b/c the story got re-written, I just didn't like the last 2 eps with how everything changed & they had to rely on the chaebol guy. the fact that the money would be going to him when gunwoo & woojin should've taken the money to continue the grandpa's good deed makes more sense. I get that they weren't here for the money but its not wise & unrealistic with what happened at the end
- I wished we would've been able to explore how the bad guys were punished. I think the good guys just suffered so much in comparison to how the ending was more open-ended, almost seems lackluster and too many loose ends
- I think 12 episodes would've been ideal to further explore the grandpas, his 2 friends, and even the villains backgrounds. I honestly think they should've done something different with the chaebol dude bc I honestly didn't care for his story & even at the end his character didn't show appreciation for the help he received & yet he took all the money (no redeeming qualities to him)

What I liked:
- everyone's acting was amazing, loved that the plot is unique and the characters as some say the plot is mid
- woo do hwan is obviously good and he was what kept me watching
- the grandpa's 2 friends/helpers were very likeable for me, just sad what their ending was
- the villains did a good job portraying their characters
- I liked the fight scenes and the car chases scenes