Meeting Madotsuki

Team Death Prevention and Creating Trust (or preferably, Death PACT for short) have discovered a random door covered in curtains, upon entering what's beyond the curtains , they meet Madotsuki in her very small residence and whenever they fell asleep, they find themselves in a strange collection of worlds within Madotsuki's subconscious mind. What will they learn about this odd girl and her equally peculiar dream worlds?