He retired as a border guard and became a security guard at a steel factory, but the president of the group is his biological father who he has not called dad in six years.
It wasn't until the truth about his mother's death was revealed, and it wasn't until his father died of a sudden illness that he truly began to understand what his ancestors and fathers shouldered.
Faced with a complex society, faced with family relationships that each have their own agendas, and faced with fierce business competition, how should he break the situation?