War of the Netherworld, Part 2 is the thirteenth episode of Disgaea: Hour of Darkness.
Thanks to Thursday, the Dimensional Gatekeeper was able to send Laharl and co. to the Gargantua. After passing through the EDF cannons, the group makes it to the interior of the ship. After defeating lots of EDF soldiers, the group encounters Kurtis again and he challenges Gordon for the title of the Defender of Earth. However, Kurtis is defeated and retreats to recharge himself up. Moving further, they encounter none other than Carter. Shortly after, he releases a modified Jennifer, who beats up Gordon. Carter then revealed that Jennifer is a master of Kung Fu. However, Kurtis, already well, takes on Jennifer. However, they are evenly matched. Kurtis, with no choice left, sacrifices himself to save Jennifer. Carter, with his plans foiled, flees through an escape pod. Before the group can pursue him, they are stopped by Angels, and a battle ensues. After defeating the Angels, they return to the castle, and Flonne, Laharl, Thursday, Gordon, Etna and Jennifer head to Celestia to confront Lamington about this.
There are no special endings for this chapter.