A pseudo-historical movie that follows a modern day elementary schooler as he's tossed back into time to observe Aterui--a real leader of the Ainu (indigenous Japanese) who fights against the Imperial Court.

Aterui

As the mermaid princess of the North Pacific (one of the seven mermaid kingdoms), Lucia entrusts a magical pearl to a boy who falls overboard a ship one night. Lucia must travel to the human world to reclaim her pearl and protect the mermaid kingdoms. Using the power of music Lucia is able to protect herself and the mermaid kingdoms from a growing evil force.

Mermaid Melody: Pichi Pichi Pitch

Hirayama Jirou has lost his mother in the Great Kanto Earthquake and now runs a soba stall with his father. He decides to join the crew of the famous ocean liner Hikawa Maru and finds work cooking in the ship's galley. Through his eyes, the film explores the ship's 85-year history.