Magic Sect of Beauties: The Strongest Mage is in a Cultivation World - Chapter 27: Tragedies of the Azure Lotus Sect.

Everything in the world can be repaired!

- Description from novelbuddy

In the wake of the first wave of shadow creatures, the world was plunged into ruin, a desolate yet enchanted wasteland. Humanity, driven underground, clung to survival while desperately plotting to reclaim their shattered world.But from the abyss of darkness, something miraculous stirred—a mysterious tree, shimmering with ancient power, appeared overnight. It chose only the strongest of heart, those with unbreakable will, gifting them extraordinary abilities. With these powers, humanity rose from the depths, waging war against the shadows.Yet beneath the surface of their heroic deeds lay a hidden rot. Corruption seeped into their ranks, and arrogance clouded their judgment. As their powers grew, so did the whispers of betrayal. The true battle may not be against the creatures lurking in the shadows—but against the darkness festering within their own hearts.A question lingers: When heroes fall, who will rise to take their place?

Swordmaster Karyl MacGovern.

He returned to the past, wanting to rewrite the future he was unable to change with his sword alone. And this time, he would acquire the power that once eluded him—magic.

This time, he would master both sword and magic, and stand on the peak.

Being given a chance and reincarnated is nice and all, yet why do I have to become that male friend who just watches the protagonist flirting with his harem?---World: Kaguya-sama: Love Is War - Hyouka ----