Fantastic Children (2004 - 2005)

Fantastic Children is a Japanese animated series about two young children who find themselves on a quest to uncover a centuries old mystery. The series follows Tohma, a energetic young boy who meets shy Helga and helps her free herself from the orphanage that she lives at. Together they head out on an adventure and indavertently get wrapped up in a conspiracy to find a mysterious woman named Tina who may hold the key to a mystery spanning hundreds of years.