Cheerful, optimistic Nadja is one of many English orphans living in the quaint Applefield Orphanage. Yet one fateful day, when the orphange is attacked by men looking for her mother's brooch, Nadja learns that her mother may still be alive after all. Hoping to protect the rest of the inhabitants of Applefield and to escape her would-be captors, Nadja runs away from the orphanage and joins the Dandelion Troupe -- a traveling band of circus performers. Filled with the greatest hope, Nadja's grand adventure begins in a search for her mother and her own identity...
Fourteen-year-old Jean was just an ordinary would-be inventor, until the mysterious Nadia crashed into his life. With no family, a pet lion and a jewel known as the Blue Water, Nadia is constantly on the run from those who want to steal her most valuable gem. Now, with a trio of thieves and the nefarious organization known as Gargoyle on their trail, Jean and Nadia must struggle to learn the secret of the Blue Water and protect its powers from those who would use them to destroy the world!
In the anime Ashita No Nadja, Nadja, an orphan, joins a traveling street performance act called the Dandelion Troupe because she finds out her mother might be alive. She travels across Europe and finds many friends along the way that teach her things about herself. She also wears a brooch around her neck that a bunch of thieves are after.
In the anime Nadia: Secret Of Blue Water, Nadia, also an orphan, grew up in a circus. She travels across Africa trying to find out where she's from while all the while she is being hunted down for her jewel known as the Blue Water. Nadia also finds out her father might be alive.
You can see the similarities.
Both anime combine traveling to find out things about themselves, romance, and adventure.
So, I am almost positive if you like one, you'll like the other.
Amidst a beautiful sunset, Shu is violently whisked away to a grim future devoid of water, and empty of hope; a place where children are forced to become soldiers, and kill countless others in the name of King Hamdo. Shu's companion is a mysterious girl named La La Ru, who may hold the key to survival. Now, he must concentrate on the only things that matter: escaping Hellywood, and finding a way home.