He is studying the ancient historical records.

Above all, I like his smile the most.

No wonder he is so tired, he has been working all day.

No wonder, I understood why he is so tired.

He is working in a large oil field in Saudi Arabia.

The maple leaves are dancing in the autumn wind.

Kaede is my best friend.

This box is decorated with beautiful mother-of-pearl.

I happened to meet him at the library.

Because of that, he was late.