The supporting character's harem is very normal - Chapter 13: This is your portion

Seventeen-year-old Grayson has endured a harrowing childhood, leaving him with a dark and twisted philosophy. Driven by this painful doctrine, he imposes his skewed beliefs on everyone and everything around him. His malevolent actions draw the attention of an ancient evil, an entity wrapped in darkness and legend. This being sees in Grayson the potential to carry on its legacy.As the ancient evil begins to mold Grayson for a future drenched in darkness, he finds himself drawn deeper into a web of manipulation and control. Questioning whether he has the strength to defy the fate that has been thrust upon him.Theós, an ancient deity whose origins are lost to time, rules with an iron grip, instilling fear and absolute control over those who dare challenge him.“If it is not within Theós' plan, it cannot be done!”

{Author Of Old-World Extra}There was nothing special about my life... except for how I died.I went out in the dumbest, most ridiculous way possible; even a dog’s death would’ve made for a better sight.But hey, that wasn’t even the weird part. Not by a long shot.For whatever reason, my soul had gotten ripped out and shoved into the body of some “Villain” in a faraway land.Yep, you heard that right. A clichéd “Villain.” And I’ve got ten days before he’s publicly executed.This guy—well, I—used to be a Beggar.One that grew into a Seeker, then a Magi, then a Professor, and then...A Sultan.The one ruler of the entire world.Now? I’m stuck facing the people I used to love, ready to pay for all the “evil” I’ve done.Fate seemed hellbent on ending me, no matter where I went, but just as I was about to give up...A Script appeared before my mind’s eye.{Would you like to witness your real history, your Path?}{Would you like to make it past your Promised Day?}{Would you like to become a True King?}{If so, repeat after me…}It gave me one word—ancient, powerful, and clear.“BASSORĀH!”Many paths came together.—This is a story about suffering. Anger. And Forgiveness.Extra Tags: Drama, Reaction, Misunderstanding, Transmigration. Time Travel.

The ‘meddlesome’ high school student Mamori Suzufumi helps a starving neighbor who had collapsed in the apartment next door by some chance.That person turned out to be the popular high school idol, Sasaki Yuzuki!Yuzuki had been on an excessive diet to maintain her ideal idol image.But when the worried Suzufumi serves her homemade cooking, she eats it with a face full of happiness while screaming,「——Aaaaaah… I can’t take it anymore!」With a face full of happiness, she finished her meal.Falling in love with her hearty appetite, Suzufumi decides to tempt Yuzuki with her favorite foods to make her fall for him through ‘food seduction.’Pork bowl, ramen, okonomiyaki——「I definitely won’t eat it!」That’s what Yuzuki says, but once again, she finds herself craving Suzufumi’s cooking today──

With the revival of spiritual energy and the breakdown of the order of species, it is a difficult test whether human beings can still stand at the top of the biological chain.

(There is already an old book, The Strongest Descends in the City, you can read it.)

- Description from novelbuddy