Everyone around Futaba expects her to grow up and become an adult, and she's lost the ability to keep herself mentally balanced. At the bottom of her heart, her childish self is still there, and still strong. One day she wanders into another dimension, a world where the light has been lost, and darkness rules. The people there exist as babies wearing only their underpants...
He's the greatest ninja 
in Asia, Hattori Hanzou!
Er ist der größte Ninja
in ganz Asien: Hattori Hanzou!
Es el mejor ninja de Asia,
Hanzou Hattori.
Es el mejor ninja de Asia,
Hanzou Hattori.
Le premier ninja du Japon !
È il più grande ninja
di tutta l'Asia, Hattori Hanzo!
Ele é o melhor ninja
na Asia, Hanzo Hattori!
Перед вами... 
величайший ниндзя Азии, Ханзо Хаттори!