A stranger comes to a fishing village, which plans to catch lots of fish through poisoning the river.  As the villagers debate, they are warned against this by a traveling priest. A fisherman saves a little turtle and is taken to an undersea palace. Two boys go to ask the fire god to help them with a demon who's been raiding their village.
Tarou got on the turtle's back 
again and left Ryugu Palace.
Tarou otra vez se montó en la espalda de 
la tortuga y abandonó el Castillo Ryuuguu.
Una vez más, Tarou se montó en la espalda 
de la tortuga y partió del castillo de Ryuuguu.