The supporting character's harem is very normal - Chapter 37 Miam!

“I, an Immortal Cultivator in this world of superheroes, alone understand the Dao.”Elius Northrim had a peaceful life—until he blacked out and awakened with tragic memories of his past life.Along with those memories was a realization that in his eighteen years, he was living in a brutal superhero universe, and his ruthless alien father—whom he had never met and a SUPERMAN equivalent of this world—was coming for his life because one of his brothers, the main character of the comic awakened his Solarion bloodline.Surviving while being mistaken for an awakened Solarion offspring of his father too, Elius must keep the truth hidden—he’s not one of them, but an immortal cultivator.If his father discovers the deception, both he and his mother will die.But the worst part is that he has become his father's favorite among the two. To avoid being constantly under his father's watch, Elius enrolls in a superhero academy, blending in while secretly growing stronger.However, with rival students, watchful instructors, and his father’s looming presence, one mistake could mean death.Now, he must master his powers, play his role, and survive—before his secret is exposed as a lone immortal cultivator in this world of Superheroes.

“From my viewpoint, this so-called supreme bastard’s body will serve as a valuable asset to simplify my life.”Dane was a carefree slacker until a deadly virus turned humanity into flesh-eating monsters—his own roommate included. After being devoured, he mysteriously awakens inside a simulated LitRPG world as a hidden extra, far stronger than the protagonist. Gifted with Adaptation and a heavenly beast, he rises through Soul Academy, defying expectations. However, a mysterious hindrance threatens his newfound power, forcing him to fight for survival.‘…One… Two… Three… Wake up!’

Waking up as a baby in the Naruto world, reborn in the same generation as Naruto and Sasuke—Izayoi knew this was a hell-level start.But at the age of one, everything changed. He awakened the Talent Entry System.As long as he defeats an opponent, there's a chance to absorb one of their unique talents and add it to his own arsenal.His Newbie Gift Pack?A one-time talent copy ticket.His first thought was to use it on Naruto and copy his Sage Body.But then—he had a better idea.Why not use it on Ōtsutsuki Toneri, the moon dweller who once descended to Earth just to glimpse Hinata from afar?In a world ruled by bloodlines, where power flows through heritage and strength decides everything, no cheat is more broken than the pure Ōtsutsuki bloodline.~~~

A man who gets into the Webtoon comic he reads and becomes the most feared S rank Villain, but actually he is a loser??