In a small town there was a family called the Gray Family. There lived an old man who had four children. He wants his children not to become people who are too quick to judge things. and his wife died while giving birth to their last child.

- Grey King
He was the first brother who was so great that he became an official in the city, when he served all the prosperous citizens and was highly respected there.

A very harmonious family without a mother! great father and will be born on base.

- Grey Ninja
He is the second older brother, he is a very great Ninja, but he is tasked with maintaining security in the city, since he has been there there has been no crime in the whole city.

- Grey Apple
He is the third older brother, he is a successful fruit trader in the city, everyone knows him because so many people buy fruit from him and even import it abroad because the fruit is very fresh and sweet.

- Grey Genius
He is the last child who is very Genius at school, everyone knows him because of his Genius, maybe now he is nothing because he is still at school but in the future everyone is sure that he is the one who will make this small town become a very developed city.