The protagonist has the light ability and guards the passage to the demon world with the organization. Later, he goes to the demon world.

The first half was in the human world. There were people with special abilities from various countries, and there was also an organization that specialized in guarding the passage between humans and the demon world. In the end, demonic qi leaked and affected the real world. Many humans were demonized and fought. After that, they entered the demon world to teach the demon world a lesson. The humans formed an elite group and opened the barrier to enter the demon world. That's all.

Answer 1

There were many possible choices for such a novel title:

Guardian of Light: This title highlights the protagonist's light ability and describes his role in guarding the passage to the demon world.

2 " Demonic Invasion ": This title hinted at the protagonist's adventure in the demonic world and also highlighted his ability.

3 Dark Lord: This title highlights the protagonist's dark abilities and describes his role in the battle against the demon world.

4 " Power War ": This title described the protagonist's battle in the field of power and emphasized his military ability.

5 " Journey of Light ": This title highlights the protagonist's light ability and hints at his adventure.