Sword Art Online, created by Reki Kawahara in 2009, is a popular anime and light novel series that takes place in a virtual reality MMORPG world.

The Japanese wagtail is a small bird that is found throughout Japan's rivers and streams and is known for its distinctive bobbing tail.

Yokohama is Japan's second-largest city and a major port city located south of Tokyo, with a population of over 3.7 million people.