Reaching Salvation is filled with many diverse and different characters - as such, ranging from the mysterious adults who have come to be known as the Big Five- a title given to them by Dobi Boushi -after the filler villains from the Digital World Arc of the original Yu-Gi-Oh! series- to the wide amount of contestants battling it out for a chance to reach Utopia. The number of contestants within the Acer Tournament is never officially stated, for obvious reasons, which allows for new contestants to pop every so often as those that survive to partake another day begin to interact more with one another.