One Piece, created by Eiichiro Oda in 1997, is a popular manga and anime series that follows the adventures of a group of pirates as they search for the ultimate treasure.

Sapporo is the largest city on Japan's northern island of Hokkaido, and is known for its winter sports and beer.

The Kamakura period, which lasted from the 12th to the 14th century, was a time of political upheaval and marked the rise of the shogunate.