After watching part 1 of DAS I thought I had an idea of what was to come. I knew that of course our cast was pretty big so there were going to be some deaths. But I did not expect the last plot twist.

First, where TF is Mr. Won Bin?

Second, the plot of the prisoners.. was that really necessary? I mean we get to know that it has been a month since when Mr. Lee and the explosion at the university. It is not bad to assume that the prisoners have been there for more than a month... how are they still alive? and how did the spheres not make an appearance to them? The prison is empty so that would've shown the prisoners that something was going on.. and there were windows in the cells too. Aside from the illogical holes, the sexual harassment plot of the prisoners to Ae Sol was also not necessary like we get it.. they are prisoners that probably murdered someone but really?

Last, and most definitely the most disappointing part was Guk Yeong Soo's arc.. I mean what? Honestly, I would have been fine if the characters that died, died in the spheres instead of GYC.. i would've been fine if they all committed suicide together because they decided not to return to society or something. But really?
If they had to go this route, why not develop this arc more throughout part one? The foreshadowing that GYC is slowly going crazy in would have been better than just snapping due to the CSAT being canceled. No, PTSD - or having the science Uni kids making our cast fight each other in order to obtain the resources... or literally anything.

+ small point: the main conflict of the drama (the spheres and how to kill them, etc) was handled off camera?!

I have seen some reviews saying that the joy at the amusement park was the ending but for me, the ending was with part one of this series. This show died when Mr. Lee and Won bin died. But I would like to commend the actors and actresses on this drama because even though the writing was bad, they did such an amazing job with the script.