Setsu is a pathologically vain and arrogant vampire lord who has formed his own Coven; know as the House of Naraka. He and his twin brother Ayumu were raised from birth in an ancient coven known as Kakkuru-Shi, or Clan of The jackal. Unlike his brother who is cold, calculating yet equally vain, Seth's flamboyant, hedonistic and self-absorbed lifestyle labeled him "Mottanai" or wasted potential and undeserving. He was stripped of his inheritance to co-govern along side his twin. Slinking into the shadows and alleys of the modern word far from the ancient clan he came from, Setsu now rules over his nightclub known as The Mausoleum. It is here he appeals to the darker natures of mortals and immortals alike, and slowly gathers resources to extend his talons into the perpetual darkness of the urban underbelly.