Bastard!! Ankoku no Hakaishin Part 2 (ONA)

Kall-Su and Abigail's army continues advancing on Metallicana with the goal of releasing the god of destruction Anthrasax from its seal. After betrayal splits the Four Divine Kings, Gara and Nei Arshes lead a counterattack, but Abigail's undead army keeps growing, while commander Lynch appears wearing one of the Three Demonic Treasures and wields power that seems almost impossible to stop.

With Dark Schneider absent, Yoko Tia Noto desperately tries to bring him back before the kingdom falls. As alliances fracture and increasingly destructive weapons enter the battle, the conflict grows from a defense of one city into a race to prevent an ancient power from awakening and erasing everything both sides are fighting over.