The worldwide cyberterrorism organization Medjed has targeted the Phantom Thieves, threatening to shut down all of Japan if they don't reveal themselves! But Akira receives a message from the mysterious Alibaba, who has a special offer for the Phantom Thieves--steal a certain person's heart, and they will take care of Medjed. But that person is none other than Sojiro Sakura's adopted daughter, Futaba Sakura! With this wrench in their plans, will the Phantom Thieves be able to deliver in time?