Daisy Gardener, Astral Mage and Steward-Class Witch, has been hired to aid an Exalt Witch- a title given to only the most powerful magi in history- who requires her fortune-telling services. She quickly learns there's more to being an Exalt than simply being powerful in reality, however- this Exalt Witch's power extends into dreams, and Daisy needs to rescue her from them.

A surreal horror visual novel, Letter House asks- what are your walls made of?

[From Itch.io]