MTL - Blade and Sword God Sovereign - ~ 1137, people who live in memory?

I am merely a reviewer, albeit the products I review are slightly different. For example, I review quantum computers, artificial intelligence, anti-gravity mech armor, planetary engines, sublight colonial ships, stellar detonators, etc…

After dying in an oddly anticlimactic vending machine accident, Kazuki Ren is reincarnated in the demon realm—not as a hero, not as a villain, but as the only human male student enrolled at the mysterious Academy of Ruin, a school where all the professors are demon lords and all the students are powerful, beautiful she-demons.Ren is told he has one task: survive.But there’s a catch. The Academy’s darkest secret is about to awaken, and Ren holds a hidden power that could either destroy the demon world... or rule it.Now surrounded by seductive demons with hidden motives, eldritch tomes, forbidden dungeons, and twisted exams, Ren must master his ability—or be consumed.Magic, mystery, danger, and temptation await in this dark academia harem fantasy.

CEO Leng Li: The sky has finally cooled down. It’s time for that person who bullied my sister to go bankrupt.

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Jie Ao –xianzun (officer of Emperor Jie): The emperor is not allowing me to marry my junior sister? Good! Then, both of us are going to elope.

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Overbearing Regent: This is my little princess! What do you mean by thousand pounds of gold and precious nobles? All of you kneel down to her!

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Tong Su only wanted to complete her task of eradicating the scum male in order to get a chance to exact her own vengeance. However, this big BOSS, why do your eyes show such emotion towards me?

Important note: Sweet pet, oppressive slag, fake brother and sister, not blood related!

- Description from Novelupdates

Throughout the Ming Kingdom, Jun Hua was famous for being a useless girl without any talent worthy of praise. Everyone mocked her, belittling her for latching onto her brilliant brother Jun Min, the young and peerless general admired as the most talented prodigy for his talent and his ability to change the fate of the declining Jun Family.

Never in their wildest dreams would they have suspected that Jun Hua is the young general who is leading the army on the frontline, Jun Min!

“She has no talent as a girl, but has the brilliance of a great general!”

Her journey towards revenge is something she has to do on her own. And yet, on that path she will gain allies, friends, and possibly even...... a romance?

This is Jun Hua's story, a story that shall be carved into history as the legend of “the flower who blooms from the battlefields”.