Government Crime Investigation Agent Zaizen Jotaro

After Japan's economic bubble burst, the country slowly recovered, but corrupt politicians still make deals with corrupt businessmen so both can profit from the hard work of others. Keiichi Suzuki, head of Ōshika Construction, and Seijiro Matsuzaka, a member of parliament, have a deal that lets Ōshika Construction use fewer materials in its projects while still getting its buildings approved for business use. Unfortunately for them, the Government Crime Investigation Agency, the Japanese government-approved but independently-run equivalent of the FBI, is already on the move. Jotaro Zaizen, a police officer long thought dead, is the agent on the Ōshika case and gathers a group of people who have their own reasons to fight Suzuki and Matsuzaka. To help fight the GCIA, though, Suzuki hires the Haoukokuryu-kai, a yakuza group.