In Highschool DxD Season 2 Episode 3, Issei and Kiba begin to fight against Irina and Xenovia, but both of them lose to the girls who leave the school premises after the battle. But before they left, Rias asked them about the Fallen Angel who stole the Excaliburs and learns that the person who stole the Excaliburs was none other than Kokabiel, the leader of the Fallen Angels. Meanwhile, at the Occult Research Club, Yuuto is extremely frustrated over his loss to Xenovia. After seeing him leave the room with such anger, Issei decides that he should help Kiba take his revenge against the Excalibur swords. He uses Koneko’s help to persuade Saji to join them on this mission, and the trio starts to search for Irina and Xenovia, and eventually find them on a street. All five of them end up forming an alliance to retrieve the stolen Excalibur swords. They also hand them an Excalibur sword so Yuuto can destroy it. Kiba is very pleased with this decision to exact revenge and thanks them for their help. After night falls, Issei and Kiba meet up and the rest of the group begin planning how to destroy the Excalibur. In the meantime, a mysterious young individual shows up beside Issei’s client.