Hyperdimension Neptunia Curse of Malice

Gamindustri is in peril of a mysterious threat, it now infects the monsters being stronger as well as spreading to other nations. However a young male named Zekken has a unique power to defeat them. He can also share his power with others, but can he acquire the help needed to stop the threat? [I don't own Neptunia, M rated for scenes]