Clash of the Twin Heavenly Dragons!.The battle between the Magicians and the allied Three Factions continues as Gasper destroys the transportation circle used by the Magicians. Azazel kills Cattleya with his Artificial Sacred Gear, the Downfall Dragon Spear, after he sacrifices his arm. Vali reveals his treachery and laments that Issei is his rival. When he proposes killing Issei's parents to motivate him to become stronger, Issei furiously enters his Balance Breaker and battles Vali. Issei then takes a huge risk by absorbing in the power of the Divine Dividing into his Boosted Gear. Prompted by Azazel's commentary, Issei's power increases drastically and inflicts damage to Vali. As Vali prepares for a counterattack, Bikou intervenes and flees with Vali. In the aftermath, Issei asks Michael to allow Asia and Xenovia to pray to God without pain. Sometime later, in response to Sirzechs's request to help Issei, Kiba and Gasper master their Sacred Gear, Azazel is fitted with an artificial arm and becomes the new advisor of the Occult Research Club. He also tells them that Sirzechs has ordered the girls in Rias's peerage to move into the Hyodo Residence. As the girls move in, Rias asks Sirzechs to renovate the house.