From Wikipedia, the free encyclopedia. The film relates the adventures of a young Japanese samurai named Yohei who visited Spain in the 17th century, in a story loosely taking its inspiration from the travels of historic samurai Hasekura. Yohei survived in hiding to the present day due to magical powers ("After centuries of lethargy, he awakes in a World he does not know"), and accomplishes many adventures in modern Spain as a superhero. Description above from the Wikipedia article Gisaku, licensed under CC-BY-SA, full list of contributors on Wikipedia.