Tyreen

Tyreen was born on the Eridian homeworld of Nekrotafeyo as the daughter of Typhon DeLeon, the first Vault Hunter, and Leda DeLeon, and is the twin of Troy Calypso. She and Troy were conjoined twins, with Troy's attachment to her being described as "parasitic". They were separated by their father.Tyreen is a Siren with the ability to leech the power from living beings, potentially killing them. This includes regular people, Sirens, and even the guardians found within the Vaults. It is implied that Tyreen's Siren powers originate from Nyriad: after Typhon and his wife Leda opened the vault on Nekrotafeyo, Nyriad's powers manifested in their daughter.At some point, Tyreen leeched their mother, killing her. Typhon was left as a single father and entertained the twins by telling them about his days as a Vault Hunter. Typhon's steady stream of stories filled Troy and Tyreen's heads with ideas of fame and fortune. After Tyreen coerced Troy to repair their father's ship, the twins left for Pandora. The two of them began preying upon the damaged minds of Pandorans by broadcasting senseless murders they committed across the ECHOnet, gaining a literal cult following as a result, forming the Children of the Vault. (you can be whoever you want)