Split Personalities

Sensui has seven personalities that all coexist within Sensui's brain. They each have distinct traits and talents. His subconscious created them to cope with the madness. It was an impulsive defense mechanism. The brain's own primitive survival instinct. Witnessing something beyond the range of normal human experience, most will go into shock. Sensui had seen a lot in his life, but nothing like the 'Feast of Human Vices'. He created the personalities to bear the brunt of that trauma. And ever since he's escaped from personality to personality searching for answers to the dilemmas that plague his soul.

Kazuya is by far the most ruthless and cold-blooded of the seven. He's been known to torture small children just for his own entertainment.