Kim Gwang-bae is an over-anxious father. He tags along on his son's school MT trips because he worries about his son. In his eyes, his son is still a mere teenager. Gun-ho died but his soul admitted to the department of psychology at the Woosuk University. To Kim Gwang-bae, his son is alive and he wishes that his son wouldn't grow up because when he does, he has to leave his father's arms forever. Kim wants his son to remain with him no matter how much trouble he causes. However on one hand, he tries to let his son go because he knows he can't keep his son with him forever. In the evening, he returns home with his son still at the MT trip. He accepts that his son is a grown-up now. His son can make it on his own but in his heart, his son will always be a young boy.
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