MTL - Rebirth Merchant: Wonderful Space Hunting for Military Officer - Chapter 3 Qin Zhan shot

Xia Zhijun got the title ‘study god’ after scoring first place in the whole city. He’s the model of a good student in a teacher’s eyes: good grades, good manners, and quiet. When he wasn’t smiling, his entire body emits a cold abstinence aura. The girls only have the guts to look from afar and not get close.
Later, it was rumored throughout the entire school that even the study god would fight and hit on girls. Whoever dared to provoke his girl, he would teach you how to be a person at every minute. The night of the graduation ceremony someone saw him blocking Gu Siyi in the corner. He didn’t stop kissing even when she cried. He bit her lips and said in a raspy voice, “I’m going crazy…”
During college finals, Gu Siyi almost bursted out crying, “I’m such a failure. I won’t be able to find a good job in the future…And if I can’t find a good job, I can’t provide for myself…”
Xia Zhijun played with her pink earlobe and remarked, “I’ll take care of you.”
After they graduated, Xia Zhijun created a research company and Gu Siyi became the boss’s wife.
The commercial rocket, “Star of Siyi” was successfully launched. So everyone knew that the new technology superstar, Xia Zhijun has a wife who he spoils a lot.

- Description from Novelupdates

Aric Valerian, the fourth prince of the Valerian Empire, bears many titles: The Forgotten Prince, The Whore’s Child, The King’s Bastard—names that have been spoken more than his own. Born with a crippling illness and devoid of mana or ki, Aric was a disgrace, scorned by his family and the court. But when the gods cured him and gifted him the strength to fight, Aric dared to hope. He sought glory in battle, only to be betrayed by his brother and sent to die in a hopeless war. In his final moments, as death closed in, a mysterious text appeared before him… [Would you like to change your fate?] After being given another chance, Aric embarks on a ruthless journey to claim absolute sovereignty. [Ki Circulation Mastered: Strength +10] [System Upgrade: Advanced tactical planning unlocked] [Hidden Fortress Established: Stronghold security +15%] The forgotten prince claws his way through the treacherous landscape of imperial politics, he is forced to make impossible choices, each decision pushing him further down a path soaked in blood. He learns that true power demands sacrifice, and the price of vengeance may be his soul.

Transmigrated into a novel she dropped was never on Qi Jianyi’s bucket list. She could still remember how she deleted the novel on her phone after reading the first 30 chapters of the book. “A book full of bullshit.” She cursed before going to sleep. Never in a million years would she have thought that one day, she would be pulled into a novel she hated.All Qi Jianyi could think of was trying to look for a way home while ignoring the plot of the novel. But where does she start? No, does she really have the time to think about it after the appearance of an annoying man who keeps pestering her? Qi Jianyi could not forget her first impression of that man. He was as cold as ice, but had a fiery temperament. Those beautiful eyes of his had once captured Qi Jianyi’s attention. But the young miss of the Qi family was too busy looking for a way home. How could she have the time and energy to care about a certain young master? However, Song Chengfeng would not stop appearing before her. He didn’t know why either. For the first time in his entire life, his mind and body were not in sync. “Why bother with her?” He whispered coldly, yet his legs already walked towards the woman who was enjoying her life. “Because I love you, Qi Jianyi! I didn’t even know I was capable of feeling this way, but I do. I love you! I love you so much that the thought of losing you terrifies me. It suffocates me. And yet… you’re not even mine.” - Song Chengfeng“Loving me only ruins you. So stop!” - Qi Jianyi

The world was once at war with 10 alternate worlds. This was known as the Concept War and our world won 60 years ago. All of this was concealed so no normal people are aware of this fact in the current time.

After the death of his grandfather, the high-school student Sayama Mikoto is suddenly summoned by the giant corporation IAI. He learns this world is headed for destruction due to the acceleration of the Minus Concepts. To prevent this, negotiations must be undertaken with the survivors of the other parallel worlds so their 10 concepts can be released.

And so Sayama is caught up in the final battle to clean up after the Concept War which left behind so much enmity.