Infinite Doggebi's

Infinite Doggebi's is constantly evolving deep within the infinite tower, absorbing and accumulating various combat techniques and magic over the centuries.
Its existence means 'infinity', and even death cannot stop it.
After disappearing, it resurrects and regains its power within a few days.
This is the result of the secret magic left behind by the Doggebi lord, and strong strength and special techniques are required to deal with it.