This plan is impossible.

Akira made his opinion obvious.

When that character suddenly appeared, the story instantly became exciting.

The train was full.

Man is my best friend.

He is still under 20 years old.

He was mumbling something fuga fuga.

Hehe, that joke was funny, wasn't it?

A mass noun refers to a noun that cannot be counted.

Unexpectedly, his face came to mind.