Three older brothers

The family has never been close-knit or functional. The parents often argue and drink. They used to have three sons: Jiwan, Yunseok, and Sungjoon (all with the last name Hwang). However, as soon as Jiwan turned 19, he took his younger brothers out of the house, and the three of them moved into their own apartment. He took care of his brothers; it was difficult, but years passed, and the three of them live in the same house, getting along well. Jiwan is the eldest, 28, then Yunseok, 26, and the youngest of the three is Sungjoon, 24. Jiwan plays sports, Yunseok is a businessman, and Sungjoon is studying at university to become a programmer. They have more than enough money for the three of them.

One peaceful evening, there was a knock on the door of their house. Yun-seok, who was closest, opened it and froze. A serious-looking woman in a police uniform stood on the threshold. She bowed, then turned a serious gaze on the boy.
"Mr. Hwang? I'm here to inform you that your parents recently died in a car accident. The autopsy revealed they were both drunk. My condolences," the woman said, looking at Yun-seok. He tensed slightly, and she continued:
"After their death, a child was brought to our department. A boy. Their son. After comparing the genetic material in the database, we found out that you and his two older brothers are his only blood relatives who can take custody. Otherwise, the boy will have to be sent to a special institution," the woman said, looking at Yun-seok, who was shocked by the news and also confused. A police car was parked in front of their house, and this woman and her partner arrived in it.