In a world where the line between human and machine fades, an organization known as CTR fights to eliminate cyborgs. Among their operatives is Sun, a skilled assassin loyal to their mission. Partnered with Wrench, a cybernetic monkey hybrid, he is sent to infiltrate Affamato, a ruthless cyborg mafia that holds Florence in its grip. But when the mission goes awry, Sun's left to navigate a world where allies and enemies blur into one.