Lonely Attack on the Different World (WN) - Chapter 270

The teenager Long Ao, ten years of silence, was reduced from genius to waste, and was ridiculed and mocked.

Ten years of persistence, ten thousand failures, and finally won mysterious Dragon Seal.

With Primal Chaos Saint Body, cultivation invincible cultivation technique, refining Heaven and Earth, devouring endless stars, sweeping the wasteland! Ask the vast stars, who dares to fight me? Boundless Starry Sky, War God! …

- Description from Uukanshu

After being reborn in a sci-fi ABO world, Xi Wei became the newly born son of the Imperial King. He thought, as the emperor’s son he could live a carefree and imposing life, but unexpectedly the First Prince is actually an omega? What the hell is an Omega?

In the shadow of Silver Peak Mountain, the Winter Moon Festival approaches - a party where wolves find their true mates. For 18-year-old Lily Carter, being an omega means living on the edges of pack life, watching others find love while she expects to be paired with another forgotten omega. All her life, she's watched Luna, the Beta's daughter, receive admiration from everyone - especially from the Alpha's triplet boys who will one day lead the pack.But on the night of Lily's 18th birthday, which falls during the festival, her world shatters when her fated mate mark shows - linking her to one of the three powerful brothers. Now Lily must manage jealousy, dangerous pack politics, and her own insecurities as she tries to discover which brother is truly meant for her. As threats emerge from within and outside the pack, Lily discovers hidden strengths that show she's far more than “just an omega.” With three potential mates - the charming diplomat, the fierce warrior, and the thoughtful scholar - Lily's destiny is far greater than anyone could have dreamed.

Legend says, that there is a great demon, who is the human kind’s public enemy. He is the galaxy federations’ nightmare as he wanted to conquer the whole universe. On the first day, he completely took out the human fleet, plunging them into disorder. On the second day, he declared that he will wipe out the whole federation. On the third day, he declared——that the hero who shot him in their previous battle must marry him, or else, he will destroy everything.

The galaxy federation president and the council members had a long meeting after that. They decided to dispatch a soldier, Wu Xing Yun, and marries him off to the arrogant demon. Wu Xing Yun was once a hero who fought for the nebula, and henceforth, he was tasked—— for the sake human race and the universe’s peace, to eliminate mistresses, settle his matters with the mother-in-law, and fix the man’s crooked ways.

Wu Xing Yun was very perplexed when he asked his commanding officer: “Sir, why did it have to be this way?”

Commanding Officer: “Soldier, bear in mind, that this mission of yours, is for the sake of the universe and mankind’s happiness. You must hold on to your husband, and fight other mistresses! Do you have the confidence to accomplish this task?”

Wu Xing Yun, stood straight, saluted, and instinctively replied: “Sir, yes sir! I will accomplish this task!”

- Description from Novelupdates