In Infinite Purgatory, "Asura" isn't a race in the conventional sense.
Any kind of ghostly creature that possesses exceptional aptitude and stands out amongst countless others can become an "Asura".
The Tiger Slash Asura was just like that.
Its tiger-headed and human-bodied appearance did not affect its status as an Asura.
Amongst the numerous Asuras, there was one incredibly unique existence.
[Purgatory Asura]
Its original name had long since been lost to the abyss.
Ever since it rose to power, slaughtering its way through various purgatories, and achieved legendary status in the realm of the dead, it was given the name [Purgatory].
Indeed, there were countless Asuras in Infinite Purgatory.
Yet, there was only one "Lord Asura".
Even the trait [Extreme Battle Spirit] began to gain popularity in Infinite Purgatory since the emergence of the Purgatory Asura.
Therefore, even though the Purgatory Asura did not care,
in Raging Purgatory, almost all were its followers.