|First game||Red Steel|
Act 1: Sato's Legacy
When Scott Monroe arrives at his dojo and reveals the Katana Giri, Otori welcomes him. Otori allows Scott to use the dojo as a place to train and rest whenever needed. And Otori's daughter agrees to train Scott in his sword skills.
Otori directs Scott to Harry's Club to find the answers he's looking for, since the club is a popular "hang out" for Yakuza types.
Act 3: The Ghosts of the Sanro Kai
After assisting the Sanro Kai in taking back their respecting districts in Tokyo, Scott heads back to Otori's Dojo where Otori gives Scott a new, heavier sword. Otori holds the Katana Giri at the Dojo while Scott trains with Mariko and later continues his journey.
The Komori ninjas attack the Dojo in search of the Katana Giri. Together, Scott and Otori fend off the ninjas but Mariko is severely injured, and the Komoris escape with the sword.
After recovering the Katana Giri, Scott visits Otori back at his dojo where he finds that Mariko had been poisoned in the battle at the dojo. Otori wants revenge.
Eventually Scott defeats Tokai and rescues Miyu. Tokai tells him of an antidote that can cure Scott's poisoned friends. Suddenly, Otori shows up to kill Tokai. That's when Scott has to make a choice: Kill Tokai and never find the antidote, or let him live allowing them to get the antidote.
- ) The player can allow Otori to kill Tokai, which will result in both Otori and Mariko dying from the poison.
- ) The player can fight Otori and defend Tokai, but if the fight is lost, Otori will kill Tokai also resulting in the deaths of Otori and Mariko.
- ) The player fights Otori and wins, allowing all three characters to live, with Tokai as a prisoner.