Mari Sakuragi's family owns and operates the okonomiyaki restaurant in the Takara Shopping street. However, ever since the newly constructed Takara Mall was built, their business has been tough. The 24th Ward Gourmet Festival is just around the corner, and Mari wants to talk to RGB for some advise. However, the RGB boys have their minds already preoccupied with something else.

A tornado hits the Gourmet Festival, and Kaba and many others become victims when a decision is made by RGB. Someone going by the name of Carneades has hacked into the 24th Ward network and left a mysterious message. The trio have no idea who it might be. Meanwhile in the old Shantytown, a highly addictive drug called "D" has become popular, and crime is on the rise. Shuta hears that Kaba's daughter Kozue has been hanging out in this dangerous part of town at night and follows her.

Thanks to the KANAE system which has been in use for two months, the arrest rate has been going up. After Kunai's terrorist attack, Ran is now wanted as a material witness. Koki has been transferred to the department in SARG that operates the KANAE system. Meanwhile, Shuta has had a falling-out with Koki and Ran. His father Rui has gone to Paris to study, so he has been busy taking care of the Aoi Bakery. While he is struggling to bake the Golden Sunrise bread which is a specialty of the bakery, he receives an email from Kozue.