In a city covered with a large dome, humans lives. There were some thousands of these domes on planet earth, some large, some small. But for a single human, the size of this dome was no less than one of the State of America. This dome was called Azure City. There were thousands of sky-tall buildings, many short houses.

Among these, in a building, a person name Richard M. Sin lives.

"Click" A teenager around 17, with average skin tone, normal height, and weight, wearing light blue trousers and red hood walks out. The environment was a little cold. He had an expression of hope, it was hard to see but he had that expression.

This person was none other than Richard M. Sin. He is a teenager, living on his own. He was rich, not much though, only enough to live an average life without doing any work. While walking on the road, he began to think about his current life and today's special day.