Oblivion

A powerful and shapeless force waits outside of the world, waiting to devour it. But the legend's very life keeps it from doing that. Now a cultist has appeared and is rushing to kill the legend, and the only thing between them is a 17-year-old boy with a cape.

Antihero Fighting Monsters Robots Superhero Supernatural Teenagers (13-18)

A powerful and shapeless force waits outside of the world, waiting to devour it. But the legend's very life keeps it from doing that. Now a cultist has appeared and is rushing to kill the legend, and the only thing between them is a 17-year-old boy with a cape.