OVA
Description
Shizuru Ozaki, also known as Master Ohga or The Absolute God, originated from a priesthood background where he studied methods of attaining divinity. His research uncovered the "Slaughtering the Self" technique, demanding the sacrifice of 1,000 lives over 15 years to achieve godhood. Completing this ritual granted him immense power but inflicted excruciating psychological torment, causing him to perceive each minute as lasting millions of years. During this state, he encountered Omni-Exist, a cosmic entity embodying humanity's collective desire for destruction, which commanded him to end all life on Earth.

His lingering human connection to Earth conflicted with his role as an agent of universal will. To circumvent this fate, he devised a plan to create powerful warriors capable of killing him before Omni-Exist's plans could be realized. He crystallized his own blood and the surrounding air into Kaizer Stones, distributing them to chosen individuals like Isato Kaiza and the Asahina twins, granting transformative abilities. As principal of Bernard High School, he recruited globally talented students, hoping one would develop the strength necessary to defeat him.

Throughout the narrative, he manipulated events to test the Kaizer Stone recipients, assessing their physical and psychological readiness. He directed the Asahina twins to evaluate Isato's emotional resilience, resulting in Ryo's death and Suzu's vengeful transformation into Platonic Slave. Similarly, he provoked Kyosuke Shigure by murdering his sister to awaken latent powers, viewing these confrontations as necessary trials. His stoic demeanor masked internal agony as he orchestrated conflicts while secretly hoping for his own demise.

In the climax, Kyosuke destroyed his physical form. This released Omni-Exist, who manifested fully to continue the mission of annihilation. In a final act of defiance against the cosmic will, his spirit momentarily distracted Omni-Exist during the heroes' battle, enabling their victory. His arc concluded with the implied fulfillment of his goal: saving Earth through his death, though Omni-Exist hinted at a potential return.