Reincarnated as the Only Male in an All-Girls Magic Academy! - Chapter 4: This Cheat Is Too OP!

Kai of the Sorcerer’s Tower is one of the last mages left, barely surviving in a world ruled by creatures of the dark — where the era of mages ended, and most of the lands got contaminated with dead mana. To save his world and fulfil his master’s last wish, he put himself through a forbidden ritual, risking his soul being ripped into pieces to make his way into the past. In an era with abundant mana — an era yet to enter the Golden Era of Magic. Things go wrong, of course, as they always do, and he finds himself thousands of years before the world fell to mana contamination — in the body of a young lord, Arzan. All is not well, though, as the young lord was murdered by someone right at the cusp of a beast wave threatening the territory, while larger threats loom on the horizon. There was a lot to do for Kai to regain his former strength in this time of primitive technology, but then again, he might just be able to change that.

The dawn era after the end of the half century has gradually rebuilt the order, abandoned civilization, and is full of undivided violence and desire.
The noble and powerful pioneers are in charge of the city, and the evil and mad plagues are in the wilderness.
Pure human beings who cannot mutate are the weakest, dominated by the rulers of the pioneers, and are not as good as animals in the wilderness.
A purely humanized young man with a worldly experience has quietly entered the WTO, holding a three-foot long knife and a long-distance desire to boil in the world of purgatory. From the nameless name to the sorrow of the Supreme Court, the name of the black ride is resounding!

- Description from Uukanshu (translated)

Hua Rong never expected to find herself in Blackthorn Academy, a notorious school created by the government to reform the most troublesome, undisciplined, and delinquent students. A place where chaos rules, fights break out daily, and the teachers have long given up.But Hua Rong doesn’t belong here. She’s determined to escape and return to her prestigious former school—by playing their game. The only way out? Earn enough points through perfect discipline. No fights. No trouble. No mistakes.Sounds easy, right?Except her new classmates are ruthless, the rules are stacked against her, and one particularly dangerous, devil-may-care boy seems hell-bent on making sure she never gets out. Xu Lingwei, whom she once rejected without a second thought. The boy who now stands at the top of Blackthorn’s unspoken hierarchy— holding a grudge.Under the second moon of fate, is this her second chance to make things right? Or will he be the reason she never escapes?.

Anger. Pain. Desolation.