An outstanding Minjae secretly falls for his adoptive father Hyukjoon, tries his best to be a dutiful son while sleeps with his close friend, TaeHyun as a replacement.
But Hyukjoon isn't proud of Minjae. Hyukjoon's son died years ago. And the one responsible for his death lives with him. Minjae isn't Hyukjoon's son. He's his target
The Perfect Relationship