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.

Harry was searching for the Philosopher's Stone.

He played the game too much and entered a 'wise man's time'.

He lost everything.

She is planning a date with her current boyfriend.

My boyfriend gave me a gift.

Everyone was surprised by the news.

Nimura-san is my best friend.

Mr. Zenmura is my best friend.

Akimura-san is my best friend.