The Attorney Academy was a mess filled with cases. Everyone at school gets an invitation from a Company.  Sorn Yiren And Hyunsuk did a mistake and didn't think what happened. Everyone gets a mail from the company. There all in groups of 4 paired with another person in the group. By time goes day by day a person will go missing only leaving 2 people left unless they all survive. A school has the same problem and finds them along the path. It's a birthday party that only 2 people get the gift or not?