The Demon was evil. He murdered humans. He is a big animal.
This monster has been around since the 1800s. He’s very old, but will never die because his heart is special. He will live until 2530. That’s very long! But when some sort of flies see him, they bite him and his heart will get unhealther and he might die. That’s what humans want. But the demon can revive itself. It has only 300 of revives in the demon’s heart. When he runs out. he dies instantly.
So be careful. He’s out there.