Fish Market is a mission in Red Steel. It's the second level in "Act 2: The Path of the Katana Giri".
In assisting the Sanro Kai, Scott Monroe heads to Tokyo Harbor because Inoue Makoto, a member of the Sanro Kai, has been kidnapped by the Yakuza. Battling his way through the fish market and the docks, Scott finds out that there's a drug smuggling operation going on. He ends up on the ship called Sakatemaru where Makoto is being held by Fugu Yamada. Scott defeats Yamada and rescues Makoto who eventually takes back Tokyo Harbor.