The Lower Realm Has Descended on Blue Star, and I Have Launched a Dimensionality Reduction Attack

[No system + invincible protagonist, dimension reduction attack + incredible background, full of bosses in the family + multiple female protagonists. Lu Yunxuan, the son of the God Emperor, was deceived by his father because he was too good at showing off. He went to the lower world to experience in a low-level civilization called Blue Star. Did you agree to just go through the motions and come back as soon as you go? How come there is no cultivation at the beginning, and the source of the divine way and accompanying spiritual treasures are all sealed? Fortunately, my physical body is still invincible. Are you a martial arts master respected by thousands of people? I can punch him in seconds. Are you the mighty Martial Saint in China? I can punch him in seconds. Xiong Guo begged to hold his thigh, while Ying Guo lowered his proud head. There is nothing in this world that cannot be solved with one punch. If there is, then give it a serious punch.