The long-standing friendship with him is very important to me.

He has a strong sense of responsibility for his work.

There are many historical sites scattered in this area.

This historic site is an important place for deeply understanding Japanese history.

I was born and raised in Shimonoseki.

Mr. Sekiya is my best friend.

Yesterday's concert was a full house.

In ancient China, a unit called 'sekitsu' was used.

In ancient China, shaku was an important unit.

He was a powerful warrior named Isho.