Sousei no Aquarion OVA

Humanity is locked in a desperate struggle against the Shadow Angels, ancient beings that have awakened after 12,000 years. DEAVA's answer is Aquarion, a colossal machine formed by combining three vectors whose pilots must synchronize their bodies and emotions in battle.

Apollo, a fierce young man believed to carry the soul of the fallen angel Apollonius, is drawn into the conflict alongside Silvia and the other Elements. As the Shadow Angel Touma pursues his own connection to Apollo's former life, the war becomes inseparable from memories of love, betrayal, and a fate that has survived across millennia.