Yamagata is a city located in northern Japan, and is known for its beautiful scenery, hot springs, and delicious cherries.

The Japanese firefly is a species of firefly that is famous for its bioluminescence, and is a popular sight during the summer months.

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.