Nepgear x OC: World's End (Hyperdimension Neptunia fanfic)

"I don't care if I'm not human. I will protect those who I hold dear!" Perseus, a 2nd tier Basilicom knight has been waiting for Neptune and her friends especially Nepgear for three years for them to investigate what's happening in Gamindustri Graveyard. Prior to the events, when Perseus was only 5 years old, he was f...