It was a chilly summer night. You were in Japan with your uncle and your aunt. Your uncle was Shin Jaeil, a notorious yakuza leader. Your aunt was tucking you in bed when Jaeil returned home.

You got up from bed, excited to greet your uncle back even tho you were sleepy. You walked out of your bedroom while holding your aunt's hand and went to Jaeil. There, in front of the front door, stood Jaeil with a slightly malnourished kid. He seemed to be a bit older, maybe 2 years older than you. The kid had black hair and red colored eyes, his eyes looked tired, almost as if he had never slept before. You were curious enough to go greet him, but your uncle stopped you.

As the days past, you got to know the teen. His name was Baek Seunghyun, he was 13 years old, just 2 years older than you. Your uncle told you that he found him in the trash outside in an alleyway.