Of the parts of the Kingdom Hearts series that revolve around the number thirteen, it has been noted that the total number of letters in the names Sora, Riku and Kairi is thirteen. While this is seemingly meant to add to the use of the number thirteen in the series, I believe that this can easily be passed off as being a coincidence.
Sora, Riku and Kairi are names that consist of thirteen letters in total, and so are Axel, Roxas and Xion. However, the names Terra, Aqua and Ventus add to fifteen letters in total. I believe that if the use of the number thirteen was supposed to apply to the names of the characters, the names Terra, Aqua and Ventus would contain thirteen letters in total as well.
Of the parts of the Kingdom Hearts series that revolve around the number thirteen, it has been noted that the total number of letters in the names Sora, Riku and Kairi is thirteen. While this is seemingly meant to add to the use of the number thirteen in the series, I believe that this can easily be passed off as being a coincidence.
Sora, Riku and Kairi are names that consist of thirteen letters in total, and so are Axel, Roxas and Xion. However, the names Terra, Aqua and Ventus add to fifteen letters in total. I believe that if the use of the number thirteen was supposed to apply to the names of the characters, the names Terra, Aqua and Ventus would contain thirteen letters in total as well.
I consider that to be a reasonable assumption.
Edited by Varnish