A blazing comet streaks across the heavens, its dazzling glow illuminating Earth's inhabitants. During this moment, a massive legion of viruses breaches reality, annihilating everything they touch. Netto and Enzan deploy cross‑fusion tactics to counteract, yet are transported to an uncharted realm where they face the mastermind behind the assault—Duo! in a swirling vortex of chaos, with echoes of forgotten dreams silently.