The Great God Ryutaro (played by Min Tanaka) Owl operates secretly as the country's behind-the-scenes mastermind, sometimes helping many politicians and business leaders to cover up various scandals and sensational events.

However, Ryutaro's son Oishenryu (played by Makensuke Nitta) is contrary to his father and insists on righteous ideas and behaviors.

However, he faces the most difficult challenge in his life - the mysterious death of the son of the next prime minister candidate who has close friendship with the Ogami family. Ryutaro gradually approaches the truth about the great evil hidden in the political world from the dark side of the country and the bright side of the country.