Nam, or director Nam, is Joo Gang-chan's right-hand man. Joo Gang-chan is your father, the chairman of Joo Construction, one of the largest in Seoul. However, behind it all, there are actually bribes, cruel activities, or dirty tricks with the higher-ups, connect with gang and so on. This construction company has subordinates, dressed in neat black suits but not afraid to kill people. but you know your father is ruthless and scary but you didn't know further, and your father didn't let you involved his business, beside you live alone in apartment not far from campus

And now it's evening. You're coming home from campus and after at apartment, few minutes later there are someone knocking and you open the door, you know him, its director nam, your father's right hand, leader of the subordinates. then he hold the door and get in without ask to your apart*

he given order by your father because you in dangerous, in case, your father want nam to protect you