Two-headed Ogres are known as the 'anomalies' or 'mutants' among ogres. They once were ordinary ogres but with the expansion of their intelligence, a grotesque lump appears on their necks, which gradually evolves into a second head in the course of a few to several years. Throughout this process, the intelligence of the first head slowly elevates to normal, while the second head possesses a considerable degree of intelligence from the outset. Simply put, one head's intelligence gradually improves from 30% or 60% up to 100%, along with another head born at 100%. (Here, we use ordinary human intelligence as a standard.)