This was clearly not due to the Breathing Method, leaving only two other reasons.
Either it was due to individual physiological differences,
or it was because of differences in the main ingredient of the advancement magic potion.
Perhaps it was both.
"After all, the differences between people can sometimes be greater than anything else!"
"And bear-like Transcendent creatures definitely aren't limited to just one or two types; there should be many varieties."
Moreover, Rein then thought of something related to what Hamilton had just mentioned about the 'special transcendent characteristics of mysterious side energy particles'.
"That... Sir, the ferocious werewolf we hunted down last time, was the light blue airflow around it what you were referring to as some special transcendent characteristic of mysterious side energy particles?"
Hamilton looked at Rein with approval and said, "Smart! Indeed it is."
"That werewolf possessed a special innate ability named 'Rift.'