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.

Hiroshima is a historic city on Japan's western coast, and is known for its Peace Memorial Park and Museum, dedicated to the victims of the atomic bombing.

Osaka Castle is a famous landmark in Osaka and a popular tourist attraction, with a museum that showcases the history of the castle and the city.