The Imperial Japanese Army was a Japanese military force that existed from the Meiji era to the Showa era.

The Imperial Japanese Navy was once the navy of Japan.

He is exactly in the state of 'A frog in a well does not know the vast ocean.'

He spoke of his big dreams, saying, 'How can a sparrow understand the ambitions of a swan?'

He is able to both talk and do, and can handle any job.

I will hold my birthday party on the twenty-eighth day of the month.

Octans is one of the constellations in the southern sky.

It is said that Yagamihime of Inaba was a very beautiful princess.

A tesseract is a four-dimensional geometric shape.

The tesseract represents a four-dimensional geometric shape.