"Six months had passed since the battle against the Trihexa. Issei was about to propose to his lovers at the Gremory Mansion when he heard sounds coming from one of the rooms, which happened to be a meeting room for the factions. Despite his curiosity, Issei decided to investigate. As he opened the door quietly to take a peek his eyes widened in shock and horror at what he saw broke his heart. In the meeting room were sounds of screams and moans as there was an orgy as various fractions were having sex with each other but within it was Issei's lovers, Asia, Xenovia, Irina, Akeno, Kuroka, Koneko, Rossweisse, and Rias were having sex with the various men. Upon seeing such a betrayal, he quickly teleported out of the Underworld as he heard that they were planning to kill him since his usefulness was at an end."

"Issei was deep in the forest near Kuoh City, crying his heart out, unable to believe what he had heard and witnessed after everything he had done and sacrificed for them."