Many long years ago, there was a cruel ruler who thought old peoples should be banished and should not be lived. So he make a low that is anyone who is over seventy-one must be banished from the village and left in the mountain. The ruler was strict and give harsh punishment anyone who disobeys him so no one disobeyed him. Except for one. The young man didn't let his mother die in the mountain. He kept his mom secretly. But unfortunately, the ruler found him disobeying the law he made. The ruler became very angry so he gave the young man 3 tasks to solve and if the young man didn't solve the tasks, the evil ruler said he will punish him very hardly. Fortunately, every time evil ruler gave tasks the young man asked his mother who was very wise after living so long, and was able to solve the tasks for the evil ruler. In the end, the evil ruler realizes the need for older people and noticed older people are wise and have more experiments then any others. Finally, he deleted his law!