He is majoring in Japanology.

The Japan Current is a warm current that flows from north to south along the west side of Japan.

The Japanese Navy played a significant role during World War II.

His grandfather was an officer in the Japanese Army.

On a winter night, I could hear the sound of the winter wind blowing through a bamboo fence.

This ancient document describes the spread of cholera.

The saber-toothed tiger is a type of extinct mammal.

I want to learn the teachings of Makora.

I am majoring in microbiology at university.

Astrobiology is a very interesting field of study.