The legendary assassin Akira Sato, known as The Fable, has retired from his deadly profession to live a peaceful life with his partner Yoko, posing as ordinary siblings. By day, Akira works part-time at design company Octopus, alongside CEO Takoda and employee Misaki, unaware of his dark past. Meanwhile, Utsubo, a representative for an NPO, secretly colludes with contract killer Suzuki to set up targets for extortion, with their sights set on Octopus design company.

The Fable: The Killer Who Doesn't Kill
A retired hitman, Akira Sato, encounters a young woman he had previously wronged, now confined to a wheelchair, being held captive by a criminal mastermind turned extortionist, who is also on his hit list.