What if instead of defeating Chaos, Sailor Cosmos gave in to her doubts? Knowing she was about to succumb to the evil forces, she created a pocket reality "a Dream" to protect her loved ones.

But dreams reveal the deepest parts of the subconscious, so not everything is as peaceful as it seems.

We are called through the journey: Dream Walkers. Able to move freely through this world without knowing why or how we've been summoned, we begin a journey to cleanse the Dream and help the Moon awaken and reveal all the mystery behind our existence.