He should stop his self-destructive behavior.

The robot initiated the self-destruction program.

My friend lives in Yokohama.

Kōko is my best friend.

Mr. Kodera is my best friend.

He was sentenced to 20 years in prison.

懲 may not be used as a surname.

His cooking skills are among the top five.

When he immigrated to a new country, he remembered the proverb 'When in Rome, do as the Romans do' and tried to adapt to the culture of that country.

There is a proverb that says, 'When in Rome, do as the Romans do,' so let's follow the customs of Rome when we are there.