The supporting character's harem is very normal - Chapter 447 It’s over, Lathel

A man reincarnates in the body of a boy who suffered a tragedy, only to realize that he is in the world of My Hero Academia. What's even stranger is that his quirk seems to have the abilities of Nen and Haki.

In a world where beast masters rule by taming magical creatures and competing in thrilling tournaments, becoming the most celebrated sport, Eratz seemed destined for greatness. Surrounded by friends and family, his path was set until a shocking betrayal shattered his dreams.Fueled by the pain of his betrayal, Eratz looks up at the night sky, finding a new purpose. He vows to rise from the ashes and conquer the beast master world, determined to become the greatest and reclaim his lost honor.

She is the underworld Ghost Doctor’s only disciple, who accidentally transmigrated into the body of the main wife’s daughter in the general’s mansion. She used to be a punching bag.Now, she stepped on her dregs of an older sister, put her father’s concubine in her place, and teaches any objectionable aristocratic ladies a lesson.

Her days are rather free and unfettered. But when did that cold as ice prince from the rumors, sporting a deadpan face all day long, fix his gaze on her?
He unexpectedly fawned and pandered to her like a devoted dog?

“Go away, you rotten man! Careful or I’ll needle you like a pin cushion!”

“Wife, why are you so fierce? As a husband, I’m so scared”
….the man is all smiles as he approached, his eyes gleaming with a cunning light.

- Description from Novelupdates

An Omega painted the villain. What would her revenge taste like?For a month, Eve has been seeking for a divorce from her mate who she’d been marrried to—the man she found out she was pregant for. They were after her life and regardless of the fact she was his mate, she couldn’t live. She knew too much about them.Her life was going to come to an end when her very ex-husband, her mate, tricked her into a job—a work that was finally going to cost her life. But all that changes when she sought protection fom a man, a lone alpha—strongest, wealthiest, that even the leader of the pack was below him.But if there was anything else this man was, it was…Frightening in a way she never imagined.Oh, but Malakai Basti was still just a man after all. He had secrets. And his secrets was something Eve never saw coming.Perharps…he wasn’t exactly the protection she needed. Because if anyone found out what he had hidden, Malakai Basti wouldn’t die alone.She had been implicated and bounded to him.