This series started out soo good. It was intense, suspense ,drama. I was really invested in the story. The acting of the cast was also promising. First, off all with the story. The writers had soo many options to put into the plot, they could have given us plot twist after plot twist. The story has the potential to do that. They could have given us such a suspenseful unexpected plot twist with the twin thing. Could have just made Blue alive or shown how and why Nail looks soo much like Blue. But there was absolutely nothing.

Unnecessary,characters and story made the show just a boring watch right after the first few episodes.

The running time of episodes shortened and BTS time increased to a point it felt like we had 20 minutes of episode and 40 minutes of BTS.

Nail and Him just forgave Te, when he literally tried to kill Nail... !! With a scooter (LOL!!) , but still tried killing and there was not any redemption or anything.

That guy Pai, on the earth doesn't looks like a tattoo artist. Please!!... There were like 0 tattoos in his body. Is that even possible?

Although I am really disappointed with the writers and directors.
I truly liked the acting of the cast. They were good and it can be seen that they took their job seriously and delivered well, with what they were given.