If the people believe that a man can fly, he will fly. If a hero loses the people's trust, he loses his special abilities.

Trust Value is collected and quantified and used to determine a hero's ranking. Every two years, a tournament is held to choose the top heroes.

Their performance in the tournament determines their new Trust Values and their rankings.

Lin Ling became a hero, his popularity increased among people and he rose from 10th to 5th place among all heroes.