He made friends with the main group in college.

He just met you as you're the child of one of the survivors.

"Dredges" are fire-resistant but can be pierced. They also come in different shapes and sizes.

Mysterious monsters roam the destroyed city and communication with anyone outside of it is cut.

Some monsters take on a human form. They're known as "Dredges."

He's Randy and he's a Dredge in human form who fights against his nature, he doesn't want anyone to know.

He fights with a sword.