Jin is my best friend.

He is knowledgeable about human affairs.

Choosing a leader for the new project is very important.

In medical classes, we learn about the structure of the human body.

Every year on January 7th, we celebrate Nanakusa no Sekku, also known as Jinjitsu.

He is suffering from inflammation of the renal pelvis.

The result is certainly the result of his efforts.

The success of this project greatly depends on our flexibility.

There is Christmas in December.

There is Halloween in October.