A dead rival's final score becomes Lupin's impossible week. He has to return five stolen treasures to five different countries in seven days, which means the heist isn't about stealing anymore, it's about undoing someone else's legacy while staying one step ahead of everyone trying to stop him. The whole special is Lupin proving he's the only thief good enough to clean up after another thief's mess. It's a love letter to the franchise wrapped inside a ticking clock. By the time you realize what Mark actually wanted, the game has already changed shape.
Master thief Lupin the 3rd receives an unusual inheritance: a challenge from Mark Williams, a rival criminal now deceased. Mark's final message is simple but demanding. Five treasures scattered across the globe must be returned to their rightful owners within one week, or Lupin loses his lead on the legendary Trick Diamond hidden somewhere in Spain. The catch? Every objective is a trap waiting to spring. Fujiko, Mark's former partner, appears at every turn with her own agenda carefully concealed. Meanwhile, ruthless mafia kingpin Ivan Crockovich has decided the Trick Diamond belongs to him and won't hesitate to destroy anyone standing in his way, including Lupin's entire crew. What unfolds is a frenetic race across continents where every heist masks deeper deception. Lupin must outmaneuver his team's rivals, navigate Fujiko's mysterious loyalties, and piece together whether Mark's challenge is genuine redemption or an elaborate setup. Clever schemes collide with genuine danger as the clock ticks down and nothing is quite what it appears.