Inspector Zenigata shows up at a prominent politician's birthday party after a fake Lupin calling card appears. To his surprise, the real Lupin also arrives. Chaos erupts when masked assassins storm the event, opening fire on everyone. Amid the gunfire, Zenigata chases Lupin into the courtyard, only for a mysterious hand to shoot Zenigata with a Walther P-38 from a window. Recognizing the gun as his own, Lupin decides to dig deeper. The assassins hail from a secretive place known as the Island of Assassins, protected by powerful government officials who exploit its killers for personal gain. But the island hides darker secrets, and Lupin, along with Goemon, Jigen, and Fujiko, gets caught in a conflict that divides its inhabitants. The story also explores Lupin's past before he met Jigen.

Concentration
Inspector Zenigata shows up at a prominent politician's birthday party after a fake Lupin calling card appears. To his surprise, the real Lupin also arrives. Chaos erupts when masked assassins storm the event, opening fire on everyone. Amid the gunfire, Zenigata chases Lupin into the courtyard, only for a mysterious hand to shoot Zenigata with a Walther P-38 from a window. Recognizing the gun as his own, Lupin decides to dig deeper. The assassins hail from a secretive place known as the Island of Assassins, protected by powerful government officials who exploit its killers for personal gain. But the island hides darker secrets, and Lupin, along with Goemon, Jigen, and Fujiko, gets caught in a conflict that divides its inhabitants. The story also explores Lupin's past before he met Jigen.