Rainbow Mission

What is the great mission? That is as brilliant as a rainbow, as colorful as a rainbow, and like a rainbow that makes everyone stop and look up. In a future where the shape of the earth has changed dramatically, there is an ordinary young man who, with few opportunities, became a poor maintenance apprentice in a snowy mountain town. Step by step, relying on the will not to give up, and a group of partners, he and a group of partners met one difficult challenge after another.