Disclaimer: I don't own Naruto nor American Mcgee's Alice even though sometimes I wish I do!
There are two worlds existing in the same universe; one of them is an 1800's era London where fire-lit lamp posts line the cobblestone streets as early cars share the road with the occasional horse-drawn carriage. Out of town, nature abounds with thick forests and beautiful countryside. The other seems to be set in ancient times where five nations, otherwise known as the Elemental Nations exist. Ninjas living in villages, and special techniques also known as jutsus are used in battles.
In Victorian London; a girl about seven years old, lives in a wealthy household with her mother, father, and older sister. She wears a blue dress that has an apron with pockets attached, white stockings, and black Mary Jane shoes. Her sister Lizzie would take her to the countryside where she could play around while the older sister reads. As for the other world, a boy about the same age, lives with his parents and older brother in a village compound. His wardrobe consists of a black high neck shirt, white shorts, and sandals. Sometimes he and his brother would play games in the forest. The boy and the girl both have black hair and they shared the same dream; to create their own world where anything is possible.
These two people, who share the same dream from different worlds, have never met... Yet.