Koukan is my best friend.

Next week, we are going to see a concert at the Budokan.

The history of the Sugawara clan is old, and it has produced many famous people.

I have visited Hakata.

The match between Alpha and Beta was very heated.

I have been to Shanhai Pass.

He wrote that he 'contracted an illness' as '羅患', but the correct term is '罹患'.

The Mahan confederacy was a part of ancient Korea.

This annual publication is issued every December.

Byeonhan was one of the confederacies in ancient Korea.