Ninefold Dream Spiral

A young man known as a "genius" by the world unconsciously arrived in a "fairy tale" world one night, and what awaited him was a mountain of peas. He also met a yellow-haired girl who called herself "Alice". Is there actually a physical dream in this world? Do things in dreams actually exist in the city? What's waiting for him in the future? Why did he come to this world? Everything is in a dream