To start off, I was hoping that Renzo wasn't the Illuminati spy, but I was wrong he is the spy that was sent. In a way, it is good to have a twist and also was it part of the plan for Renzo to make Izumo believe that he liked her. Or was only a cover to keep on eye on her before taking her to his boss. Renzo the answer he gave Takara, was that he wasn't a spy, but more of a person send to watch the Cram school Exorcist students. Rin did exactly what I thought he will do, run to Renzo and Izumo without waiting for Shuro to get there. Behind Rin the rest of the exwires(don't want to write all the names) and Yukio came in time to see Renzo with his boss and the Illuminati Organization. Angel is heading over there with backup to rescue/get Izumo, but were too late because the leader arrived before them. And through Seraphim was speaking to all True Cross Knights.
Mephisto arrived on time to save them from the heated light while he was eating.(what a surprise) The leader of the Illuminati Organization, The king of Light, Lucifer also the older brother of Mephisto, I wasn't expecting that. So that means Lucifer is the older brother of Rin (and Yukio) as well. It also seems that Mephisto is an alias, his real name as said by Lucifer is Samael. It is funny how the two brothers are talking, they greeted each other as if Lucifer came to visit. After they greeted each outer Lucifer declare war on the True Cross Knights. And reveal his plan that in a year they will revive, their father Satan and to unite Assiah and Gehenna to achieve a peaceful world. By the way Lucifer said that it was the last time that he asked Samael to join him, it means that they had that conversation before and that Samael rejected the idea of joining his brother. They both have different ideas on what was right and what is wrong. Then Samael comical said that their idea are different and Lucifer agreed, it made it seem that Samael didn't care much about the seriousness of the threat. Lucifer finished off with saying not to go easy on him and that he was taking Izumo.
After Lucifer left, Samael told Rin that his brother was stronger than him even though Lucifer wasn't in good health, that is why he didn't try to save Izumo. Instead, he send Yukio, the ex-wires, and Takara to go save Izumo while the rest of the exorcists deal with the middle class demons that are heading towards True Cross because Lucifer destroy the main barrier. Takara was hired by Samael, who considers him an Upper First Class Exorcist and that he will lead them to where they have to go. At the end of the chapter, Rin declares that they are going to save Renzo and Izumo from the Illuminati.