A little girl who lives alone in the forest with no other company than some animals and her ferret friend, finds a key that will start an adventure through a world fragmented by walls. In this adventure she will meet new friends, learn new things and little by little she will discover who she is and the mysteries that surround her and the walls that divide the world.

What if you met a guy you can only see in your dreams? Aina is related every night with a mysterious boy in her dreams, but when she wakes up she doesn’t remember anything. Who’s that boy? Is he real or is he just a product of his imagination?