Aisen is my best friend.

He was my student, but now he has become so proficient that it can be said 'the student has surpassed his teacher.'

She dyed her hair blue.

He couldn't recognize the character.

The sheep are baaing on top of the mountain.

I received a perfect attendance award.

Since he started his new job, he's been lively as if he were a fish back in water.

He absorbs new information like a sponge soaking up water.

The European water vole is a small mammal native to Europe.

This steam is what you see when water vapor cools down.