The Tokyo metropolitan region is the center of Japan's economy.

My mother prepares a traditional Japanese meal every day.

Among polyandrous animals, there are species where one female mates with multiple males.

He is recognized as the top person in that field.

Three days ago, I went to Tokyo.

World War I was a large-scale war that lasted from 1914 to 1918.

He was anxious about starting a new business, but I encouraged him by saying, 'Even a journey of a thousand miles begins with a single step.'

Ogura Hyakunin Isshu is one of the classical literatures of Japan.

The great icosihemidodecahedron is a cube with a very complex shape.

His success is an example of the proverb 'one general achieves success at the cost of ten thousand bones'.