Tree of Aeons - Trees of the Abyss

A calculating merchant of noble birth lives a comfortable life managing his guild's business at the Imperial Academy—until lightning strikes him, leaving him with prophetic visions of a disastrous future. In these visions, he's expelled from his family, branded a traitor who aids demons, and worst of all, becomes a penniless beggar. When the supposed “protagonist” of these prophecies enrolls at the academy, he realizes his countdown to ruin has begun. Now he must use his foresight to rewrite a story where he's cast as a third-rate villain, all while navigating ancient dungeons, demonic threats, and the troublesome “hero” who might be the key to changing his fate.#MoneyIsEverything

“The three elements of the easy mode of life: extraordinarily handsome appearance, exceptionally intelligent mind, and a healthy and strong body, and I have them all.”Reborn in a parallel world, the disciplined and outstanding high school student Yan Huan is preparing to welcome his glorious days.However... a decade later, he is spotted by five girls with strangely unique abilities.“...We all need to be full of positive energy.”Faced with the eager and aggressive girls, Yan Huan, who only reads the classics, says so.

A tale of avenging a father’s murder harbored hidden circumstances. A young man rose, a story steeped in bloodshed.

The notorious imperial court lackey and the meritorious military general were well-known for their mutual dislike, a pair of arch-enemies set in stone. Who could have foreseen the unexpected change in the winds of heaven: the general injured on the battlefield, both legs disabled, and even forced by the emperor to marry his nemesis.  

With one marriage edict, two people with mutual hostility are forced to marry and live under the same roof. Yet after these long days together, they come to the realization that this fellow is not truly devoid of any saving grace/unattainable and high out of reach.

- Description from Novelupdates