Tiriel  

Aizenta (One Indulged In Love Of Others), ティリエル

The younger sister of Sorath is Tiriel, who possesses a more mature mindset and teaches her older brother despite being younger. Although their relationship may seem incestuous, Tiriel's primary goal in life is to fulfill her onii-sama's desires and protect him at all costs, even if it means sacrificing her own Power of Existence. Tiriel has the ability to use an Unrestricted Method called "Cradle Garden," which allows her to manipulate a fuzetsu in order to benefit her siblings.