Today is my unlucky day, so I think it's better not to do anything.

He finished his work in a short time.

He is working as the U.S. ambassador stationed in Japan.

Hinatama is my best friend.

Her name is Izayoi Bara.

She was a secret kunoichi (female ninja).

He threw a handful of sand into the sea.

"Once in a lifetime" means to cherish the encounter that happens only once in one's lifetime.

He missed a once-in-a-lifetime opportunity.

I couldn't get in touch with her for a week.