The supporting character's harem is very normal - Chapter 448 Lathel’s ending

After a god screws up and accidentally takes high schooler Shou’s life, he offers him reincarnation with a gift to make up for it. Shou asks to retain all his old memories for the new life. Shou is reborn as Will, a noble’s son in a world where magic use is common and involves knowledge of kanji characters. With all his memories, he’s a brilliant toddler, and when he experiments with magic, he finds that he has an amazing talent for it! What’s more, though he was smart but unloved in his old life, in his new life he has a mother and a father who both love him deeply. His future as Will is looking very bright and cool!

He was The Greatest Talent in the Nine Hells Realm.

Shen Zhenyi began to practice his sword when he was four years and two months old.

At the age of seven, he studied the Ten Thousand Sword Sutra. By the age of eleven, he fought against the Yudao in Shangqing Palace. In an instant, he unleashed one hundred and eighty-five sword strikes, making it impossible for anyone to retaliate. The Yudao admitted defeat and deemed him as “The Peerless Genius.”

At the age of 14, Shen Zhenyi, with his Six Forms of the Ancient Sword, surpassed the swordsman Zuo Tianxing who was ranked among the top ten masters in the world, and won the title of “The First Swordsman of the Abyss.”

He now lies crippled. A fraction of the state he was in before. Or so they thought.

- Description from Novelupdates

Losing his fathers to monsters at just seventeen, Axel had given up on life. But everything changes when he stumbles into a portal leading to Khaos Realm, and there he reawakens the powers of the Thirteenth Inferno Hero.Now wielding the flames of an Inferno Hero, Axel is chosen to prevent an impending catastrophe. Khaos Realm is teeming with monsters and villains, and if they break free, Earth will be next. With a mysterious guide, newfound allies, and enemies far stronger than him,Axel must rise as a superhero to save both worlds.His journey takes him to Superpolis—a sprawling city where everyone has powers. There, he makes friends with other superheroes, but not all friendships are built to last. Some will help him rise, others will try to break him.But Axel’s greatest battles won’t just be against lone enemies. He will face entire monster hordes, villainous empires, and warlords seeking to conquer both Khaos Realm and Earth.What's worse, a villain seeking world domination who has already destroyed countless realms and worlds — leaving nothing but ashes behind. And now, he’s set his sights on Khaos Realm... and Earth is next in line.To stop him, Axel will need all the help he can get.But this enemy is patient, calculated, and always a step ahead. Worse yet, Axel’s powers comes with a weakness—one he doesn't know exists… but the villain does.[A/N: This novel includes intense battles, strategic fights, and moments of gore(not extreme or too detailed), which is why I’ve used the R18 tag. Axel will be powerful as a superhero, but not overpowered—every victory will be earned. Expect detailed fight scenes and epic showdowns that will keep you on the edge of your seat or the road (considering what you're doing at the time of reading ^⁠_⁠^)The first villain Axel faces in Chapter 3? Let’s just say I have big plans for him. He’s not just an obstacle—he’s a key piece of the story.I’ll be releasing three chapters daily, and I promise, I won’t drop.]No Harem!

Luke a 13-year-old boy lover of all kinds of novels, series, and manga, dies and is reincarnated in Wednesday's world with above-average psychic powers.As he immerses himself in the world of outcasts and monsters, he will discover that it is not as simple as it seems. Luke in his new life is a descendant of the famous writer Edgar Allan Poe and must deal with an old family grudge.