Now that the Floral Crucible is complete and the next Grand Saintess has been chosen, Chelsea wraps up her time in the Holy Kingdom of Celesark. She sets out for home with her maids and Lord Glen, but along the way, a landslide forces them to take an unexpected detour to the village of Ilnato. The tiny town doesn't have room to house their whole entourage, but that's not a problem thanks to Chelsea's [Seed Creation] Skill! After making an inn-sized Treehouse Seed and enjoying some local soufflé cheesecake, the group settles in for the night, ready to continue in the morning... But wait! Chelsea isn't waking up! She's trapped in a dream, where she meets a young boy named Cyril who asks to play. Soon after, Glen and Micah find themselves trapped in the dream too! Then the truth comes out—Cyril is a Nightmare!