"Family business" was the only life that Taehyung and Joohyun knew. What they didn't know, however, was how both of their families would cause one of Seoul's largest organized crime to date.

The Alpha Family was the first mafia in Seoul to be founded in the early 1900's, by Alpha's mafia leader Bae Junghwa. Alpha gained its reputation and name by being aggressively dominant amongst other mafias, although there were few at the time. They started off as a small gang, and with the right connections they quickly developed into a mafia with numbers consisting in the thousands. Junghwa built his brand with the help of his importing and exporting resources, and developed the company into an elite business known to have a library of connections varying from celebrities to politicians. 

The Delta Family is the fourth mafia family to be formed in South Korea, run by Kim Sungho, who decided to move his company to the states from Seoul in order to sustain a better connection with his resources and culture. Delta was a well known mafia that resided in the states for decades until Kim Sungmin, Sungho's son and heir to the boss title, decided to move the company and mafia activities back to Seoul when his father was linked to the murder of a politician who was running for president. Sungmin wanted the family name out of the media as much as possible, and resorted to settle family business elsewhere while he tried to figure things out in the states. He wanted to start fresh somewhere else and not get his hands dirty anymore -- well at least, not as dirty. 

Ever since the Delta Family came back to Seoul, Alpha's income wasn't bringing in as much as before, and Junghwa wasn't too happy about that. Although Sungmin wanted to establish that their company didn't mean to get in the way and actually wanted to bring up the idea of forming a joint family with Alpha, Junghwa just laughed in his face and said to never speak to him again, and if Delta ever got in the way of Alpha's business, there would be chaos. 

This all ties to two individuals: Bae Joohyun and Kim Taehyung.

Bae Joohyun's father, Bae Jungwoo, became Alpha family's new boss after her grandfather had passed away. She was aware of her family's business since she was a teenager, and was groomed to become a future captain for the family. She's always being followed around at all times by a small group of Alpha's most trusted members, under her father's strict demands. Joohyun is the only family left that Jungwoo has, and is not willing to take any chances if it means protecting his little girl.

Kim Taehyung has always been aware of his family's mafia activity. In fact, his father taught him everything he needed to know, since Taehyung was supposed to take over the family business in the later future. Like Joohyun, he always has a small posse with him at all times, most of them being his childhood friends that were recruited into his father's mafia business once they had moved to Seoul. 

Two children, tainted with mafia blood and burdened with the family business, have their lives changed forever by the clash of territory and illegal activities.

What will be the result of the conflict between these two armed forces? 

Will there be nothing but bloodshed, or will there be hope in ridding of the past?