Migi is my best friend.

The engine is designed to scavenge.

I confirmed that the engine's scavenging system is functioning properly.

There is a strange atmosphere in this room.

I'm not in the mood to work.

His actions are always full of manly traits.

We used a gas lighter than air to float the balloon in the sky.

He has a deep interest in geomancy.

He is a very selfish person, so he only thinks about himself.

His selfish behavior is causing trouble for the people around him.