شیدایهیکو هیشیگاتا

[Spoiler: Has lived for over 300 years by having Haine give birth to his child, and transporting his memories into that child.]

[Spoiler: In his current form, he can no longer impregnate Haine with live children. After all their children came out stillborn, he realized that he could no longer extend his lifespan, and observe the end of the world. This, coupled with Haine's eventual weakening, he decided to steal Haine's eyes, gain control over time, and end the world on his own terms.]