Ultra: the Reborn Son of Beria, a Loving Father and a Filial Son

The male protagonist accidentally traveled to the Kingdom of Light because he sympathized with Beria's experience, and was set by the system to be Beria's non-existent eldest son. The male protagonist who originally wanted to change the history of Beria found that he could not change it at all, because Beria had already entered, so the male protagonist had no choice but to make plans in advance. With his own efforts, he established the Galactic Empire, the Kingdom of Darkness. The dark giant from 30 million years ago? Lu Xiaobu: My little brother. Jia Gula: Lu Xiaobu is the beacon on my way forward, Hongkai, prepare to die! Ah? Have you joined the Kingdom of Darkness? Oh, then we are good comrades! Zero? Lu Xiaobu: I deceived you into lameness, and you are gone forever on the road to cheating me! " Geed? Lu Xiaobu: Little brother, if our father is the worst male protagonist in the novel, do you still want to beat him? Is my Fang Tian Hua Ji bad? Geed: I'm sorry, brother, I was wrong. I will help you fight against the Kingdom of Light. King Ao's power? I don't want it anymore, how can I have the fragrance of Father Beria! The fusion transformation Saka must bring me one, not for any other reason than that I really want to progress and become a fusion material! (Multiple female protagonists + cheating father or filial son? + Male protagonist who jumps repeatedly: light or darkness)