The supporting character's harem is very normal - Chapter 365 I am the strongest genius here

Ludwig Heart, the heir to a vast fortune and a life of luxury, craves only one thing: freedom from his gilded cage. But when a plane crash catapults him into a world of magic and danger, he awakens not as the hero he dreamed of, but as a victim in a twisted ritual. Trapped between the ambitions of dark necromancers and the wrath of vengeful gods, Ludwig must navigate a deadly new reality where his life is no longer his own. Stripped of privilege and resurrected as an undead pawn, Ludwig’s fight for survival will determine whether he reclaims his destiny—or becomes a mere footnote in a world of shadows and deceit.

Yu Qiu once thought that he could rely on his shixiong forever, but when he was captured by the Shadow Demon, he watched helplessly as his shixiong stepped into the bride room together with a woman.

He knew he was one foot in the grave, powerless to reverse the situation.

After reincarnating, how could he walk the path of seal cultivation again?

Rebel? Vengeance? Revenge? Depend on a loyal dog who would be his shield?

That was too low for him!!!

He was going to:

Break up that haze in front of his eyes and turn it into tall mountains.

No longer depend on anyone, but rely on his own strength for everything.

Make every cultivator never say the words “seal cultivation is only supplementary” ever again.

Become the strongest person in the world.

Show that he will become a Daozhang.

- Description from Novelupdates

The world is in ruins. Extreme sub-zero temperatures suffocate the surface, making even simple survival an ordeal. Frozen derelicts of bygone eras span across massive ice wastes. And the survivors closely guard any technology rediscovered within.The only escape from the deadly climate is beneath the surface. But it’s another disaster underground. Monstrous machines lurk in the depths. Unhinged demigods war against them, dying over and over, treating it all like a game. The land itself shifts over time, more contraption than rock. And an ominous prophecy states that the key to everything waits on four heroes - but nobody knows who or where they are.When an expedition into the far uncharted north goes terribly wrong, Keith Winterscar and his father get trapped together in a desperate fight for survival. Stumbling upon an ancient war of titanic scale; the two will need to set their differences aside while they struggle against Gods, legends, and the grand secrets of the realm that lies below.

Chu Nan was just an ordinary student, but because of an accident, he obtained the data collection, analysis and processing ability equivalent to the most advanced optical brain.