悪徳政治家・有森鴨茂は代官として40年、権力を濫用し富と女を手に入れてきた。主人公の父は右腕として有森の闇金を管理していたが、無実の罪を着せられ追放される。やる気を失った主人公は家出をした息子・達也に電話。鴨茂への復讐を依頼する。やがて父は亡くなり、鴨茂は達也を三代目秘書として雇う。しかし、その3ヵ月後、鴨茂も亡くなる。死の直前、鴨茂は隠していた闇金の金庫の暗証番号を変更していた。そして、有森家の勢力図が一変。隠していた金を手に入れた者が次の代官になる。隠していた金を巡って有森家が争う中、達也は復讐を開始する。
An evil politician Arimori Kamoshige have been a local governor for 40 years,. Abusing his power, he has gained wealth and women. The protagonist’s father has managed Arimori’s black money as a right hand person, but later, he was expelled being charged false crime. He got discouraged and called his runaway son, Tatsuya. He asked Tatsuya his revenge on Kamoshige. Soon his father died, and Kamoshige hired Tatsuya as the third secretary. However, Kamo also died 3 months later. Just before his death, he changed the pass code of a safebox which hidden black money was in. Then, the power balance of Arimori Family changed. The person who obtains the hidden money will get become the next ruler. While Arimori Family is conflict for the hidden money, Tatsuya begins his revenge.