Eriko Kigawa

After a successful heist at the race track, talented thief Lupin has his sights set on a valuable diamond set to be displayed in seven days. His plan is complicated when he saves a young girl named Michelle from a group of thugs. Michelle's father is very rich and connected to the diamond; her father also enlists an old mercenary friend of Jigen to persuade Jigen to work for him. Goemon has also been hired by Fujiko to assist her in her own plans for the diamond. With no one to turn to and double-crosses galore, can Lupin pull things together in a week?

The year is 21XX. Reploids are commonplace now, after Dr. Cain rediscovered Dr. Light's old lab and based several designs off of Dr. Light's original, called "Mega Man X". X, meanwhile, has joined the Maverick Hunters, and works with unit leader Zero under the command of Commander Sigma. It is their job to terminate reploids who have become violent.

Fujiko and Lupin are kidnapped by Malkovich, a notorious criminal escaped from Alcatraz who forces Lupin to steal the "Bull's Eye," a precious stone.

Cyborg detective Batou is assigned to investigate a series of murders committed by gynoids—doll-like cyborgs, which all malfunctioned, killed, then self-destructed afterwards. The brains of the gynoids initialize in order to protect their manufacturer's software, but in one gynoid, which Batou himself neutralized, one file remains: a voice speaking the phrase "Help me."