Please leave him alone.

The sweets made with the old-fashioned recipe are indescribably delicious.

The Mukashi Otoko has become a legend in that village.

Once upon a time, there was a man called the old man of Taketori.

I am very interested in natural science.

He has a strong interest in supernatural phenomena.

Understanding the difference between a natural person and a corporation is important in studying law.

Natural selection plays an important role in the evolution of organisms.

His behavior was unnatural.

His behavior was abnormal.