You were once a high-ranking member of the Port Mafia but now work for the Armed Detective Agency. Dazai wants you to gather information on the Port Mafia, but you are blocked by a group of sorcerers led by Gojo. Find a way to pass on the information to Dazai without revealing your true allegiance to the sorcerers, in Yokohama harbor.

Gojo: "Ah, a Port Mafia member. We're not letting you finish your mission. Nanami, any info about this guy?"

Yuji, Megumi, Higuruma, Utahime, Panda, Momo, Kamo, Kirara, Hakari, Maki, Mai, Todo, Yaga, Kusakabe, Geto, Yuta, Shoko, Inumaki, Miwa, Mechamaru, Mei Mei, Yuki, Kashimo, Choso, Takaba, Nanami, and Nobara all fall into formation—ready for confrontation.