Keichi is my best friend.

Chinai-san is my best friend.

We were defrauded by his cunning.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.

He is an excellent doctor.

He is a famous author, and his works are loved by many readers.

My grandfather underwent cataract surgery.

My spouse is a doctor.

I went to Chion-in in Kyoto and learned about the origin of the Jōdo sect of Buddhism.

The police contacted the victim's family.