In order to maintain the security of encrypted communication, we perform key exchanges regularly.

Every morning, I check the lock opening before leaving the house.

I forgot my key and ended up not being able to get into my house.

This ancient ruin is engraved with the shape of a counterclockwise swastika.

He is involved in the development of androids.

He became distrustful of other people due to his past experiences.

Rumors are spreading throughout the town that he is a werewolf.

I undergo a complete medical checkup every year.

He avoids interacting with people because he is a misanthrope.

He was recognized as a living national treasure of Japan.