Qi Guanyu, an ordinary social beast, accidentally traveled to the world of Ultraman and became the famous and extremely evil Belial. Just when he thought he was going to be finished, the [Strongest Ultra System] awakened. Being expelled from the Kingdom of Light at the beginning? It doesn't matter, I have the system in hand and I own the world. Absorbing the power of the Lebrondos? I'm coming! Form your own dark empire? What a joke! Kick Zero and punch Owang? This can be done! See how Qi Guanyu, as Beria, climbed to the top of the universe step by step and became the true emperor of darkness.