Attack on Titan, created by Hajime Isayama in 2009, is a popular anime and manga series that takes place in a world where humanity lives in fear of giant humanoid creatures known as Titans.

The Japanese crested ibis, also known as the "toki," is a critically endangered bird that is native to Japan and is considered a symbol of good luck.

In the 12th century, the samurai class emerged in Japan, with warriors serving as protectors for the aristocracy.