Legend says that deep in everyone's dreams stands a door.
Light and darkness, good and evil: behind every door lies an unknown mystery.
Ancient legends have endured through the ages. Few know that deep in our dreams, doors are always being opened. We may gain the power to protect the world, or become the mouthpiece of demons.
The doors in our dreams open one by one, and the departed gods and demons are about to return.
There is a group of people who swear:
"Night gathers, and now my watch begins. It shall not end until my death. I shall keep faith and hold my duty, living and dying at my post. I pledge my life and honor to the Dreamwatchers, this night and every night to come."
