Park Chanyeol and Park Chanhyun are most known as the coldest mafias in whole South Korea, if anyone goes against them or dare walk on their path would cause a big consecuences. But what happens if they bumbed into a young boy named Byun Baekhyun? Would the most strongest and coldest mafia twins catches feelings for this midget? Would they ever find love for the first time? Would they protect the young boy with all their lives?