Once upon a time there was a piece of graphite that lived in the depths of the earth. Her name is Kuro. One day a special guest was invited to her school. The special guest was a diamond named Vir. He was strong and attractive.

“You know I was a graphite like all of you here.” said Vir.

Everyone was surprised to hear that.

“How can a dark, fat and uneven graphite like me become a strong, sparkling and attractive diamond?” thought Kuro and a lot of others.

“I know what you are thinking. I was a graphite when I was born. I spent a lot of time...