For whatever reason, the smart pen is damaged.
For now I organized only the parts that were able to be confirmed.
That means Prosecutor Kim Min Joo's secret investigation has something to do with Do Hwa Construction's illicit activities.
He probably noticed that Prosecutor Kim Min Joo's investigation was being aimed at him.
Then, Choi Yeong Dal must had evidence of Do Hwa Construction CEO Hong Jin Gi's illicit activities and was going to give it to Prosecutor Kim Min Joo. That's why they
were both killed.
To get the evidence back, he had them killed and