The hours after sunset until midnight are quiet and calm.

The history of Shu is very interesting.

This problem is easy to solve.

He expected that result.

His will is very strong.

The grey nightjar is a bird that is active at night and, as its name suggests, it sings at night.

That hooligan was making a fuss in the park.

He received training at the naval preparatory school.

According to legends in Tohoku and Kanto, it is said that once you enter the 'mayoi-ya' (bewildering house), you can never get out.

Kaizen is my best friend.