Chrono Phantasma
Under Kagura's orders, Hibiki was to bring Jin back to the Yabiko branch, as his assistance would allow Kagura's planned coup d'état to go more smoothly. He discovered Jin lurking in the 9th Hierarchical City of Akitsu-Kou and snuck up on him, once again surprising the other when he announced himself right behind him. After the two reacquainted, Hibiki delivered a letter to Jin detailing what Kagura wanted. Jin asked about the city and its weather system, and Hibiki told him that the city's weather control had been damaged along with the cauldron inside the local NOL branch. Jin then refused the request and asked Hibiki to take him to the cauldron instead. Hibiki told Jin that he'd suspected he'd say no, so he would simply follow Jin everywhere until he agreed to come with him.[6] Once at the cauldron, Jin requested that Hibiki stay near the entrance, and Hibiki complied. After hearing a commotion, Hibiki hurried to meet up with a now-injured Jin, unknowingly interrupting his battle with Relius Clover. Jin told Hibiki that the situation had changed, and requested to be taken to see Kagura.[7]
When they arrived, Hibiki and Jin met up with Kagura and Kokonoe. Hibiki gave his report to Kagura, informing him of the Colosseum's status and the twelve guards watching Tsubaki's every move. He then apologized to Kokonoe in advance for any damages sustained to her equipment in the Colosseum, before stating that Makoto was also being watched per Kagura's orders. Hibiki also nonchalantly told Kagura that the electricity bill was an "astronomical" amount, and that Kagura would be paying for it out of his personal bank account. A little while afterwards, he scolded Ragna the Bloodedge and Celica A. Mercury for taking two hours to get to the main office of the Yabiko branch when the prison district was a mere ten-minute walk away; however, he did offer to take Ragna to Kushinada's Lynchpin if he needed guidance.[8]
On the night before the planned Colosseum tournament, Hibiki put his cooking skills to use and made a buffet for Kagura, Ragna, Jin, Noel, Rachel, Nago, Gii, Taokaka, Makoto, Kokonoe, and Celica. Rachel thanked him for the meal, calling it outstanding and thoroughly complimenting him for his cooking prowess; she was so impressed that she trusted Hibiki to select a brew of tea for her.[9] Hibiki later scolded Ragna for suddenly bursting into Kagura's office, and looked on as Ragna threatened Kokonoe after learning that Celica was the key to activating Kushinada's Lynchpin. At that time, Hibiki was introduced to Valkenhayn R. Hellsing, Rachel's butler and a former member of the Six Heroes.
As he had offered earlier, Hibiki guided Ragna, Noel, and Celica to the entrance of Kushinada's Lynchpin, but soon left to return to Kagura and Homura's side.[10] However, after a battle at the Yabiko branch, he was restrained by Nine the Phantom and Hades: Izanami while trying to defend Homura alongside Kagura and Jin. After retraining him, Izanami was able to viciously attack and injure Kagura before Hibiki was able to rush to his aid.[11]
After the loss of seithr in the air due to the activation of Kushinada's Lynchpin, Hibiki helped gather survivors together to better preserve resources. He praised Homura for managing to hold the NOL together, and noted that the Amaterasu Unit and Embryo were floating above Yabiko. He also informed Kagura that Jin was in critical condition after his battle with Ragna. He then connected Kagura and Kokonoe via intercom so they could freely communicate about future plans.[12]