Boa was pregnant with her second child. She was happy and so as Yunho but after the delivery. There was a sad news delivery to them. Their baby girl is in danger and was place in the ICU ward. There was no possibilities for survival. But a sudden miracle happens, changing the course of fate.    

He was there when they needed help. He was their pillar of strength and their hope. He never utter any complains nor show any signs of giving up despite people forgetting who he was. Who is he? He is a living legend. A sunbae who would sacrifice his time and his song parts to his hoobaes. A smile that brightens his hoobaes hearts in time of darkness. But what happen when the family pillar of streng