Number

The Numbers Monsters are a series of Exceed Monsters whose names begin with. According to the story of Yu-Gi-Oh! ZEXAL, there are 99 of them, but so far, only two of them are known: No. 39 Aspiring Emperor Hope and No. 17 Revise Dragon.

Backstory
When Astral first appears to Yuma Tsukumo in Yu-Gi-Oh! ZEXAL, it is revealed that she is trying to retrieve her lost memories, which have transformed into the 99 "Numbers Cards." It is to this end that Astral teams up with Yuma.

Members
Each Number monster has its respective number showing on a part of its body.