Xu Dongju (played by Park Hyun-sik), the head of the secretariat of Dashan Group, is an obscenely loyal subordinate, but in fact he is ambitious and has always been eager to reach the top of the group.By chance, he unexpectedly received a 2 trillion won black gold. He originally wanted to use this money to change his destiny, but instead he was in danger of his life. He embarked on a journey of revenge to fight against the mastermind behind the scenes.