The supporting character's harem is very normal - Chapter 472 Meeting Amleth

Before going to college, an ordinary high school student went to celebrate and got drunk. When he woke up, he found himself in a completely different world. There was a big sect, the approaching sect entrance examination, a slum where his body’s previous owner lived, and a shared memory about a missing young girl.

When he got tangled in a fight with a few punks in this different world, he fell off a cliff and miraculously found himself still alive, with two more voices ringing inside his head. They were Sword Master and Saber Master. In the company of them, he continued to find out more about this whole new world. He took the sect entrance examination, entered the sect, met a strange man in black, and even participated in a major competition of the sect to have a chance to win over his peers!
In this whole new world, he was born again and got to explore the fantastic martial world!

- Description from Novelupdates

【New Novel: After Breaking the Persona, I Reached the Peak of My Life】【The strongest male god system is starting, let’s strive to become the strongest male god~】Bi Xia with a blank expression: I am a woman.In her previous life, she met a tragic death. Reborn, she unexpectedly activated the strongest male god system and began her journey disguised as a man towards godhood. Facing the bullying and provocations of the past, Bi Xia smiled and crushed the cup: Cut the crap, let’s fight.Known as the Fourth Young Master, ruthless and obsessive, he devoted all his tenderness, pampering, and love to her, making her unable to leave him.“Man or woman, it doesn't matter. Bi Xia, you can only belong to me, Qin Zhan.”【Female disguised as male + strong female stronger male + 1v1 pampering novel, spanning campus, business circles, entertainment industry, etc.~】

Is it wrong to face the perils of Dungeon alone, in a single-member guild blessed by a failed goddess? Maybe.

Is it wrong to dream of playing hero to hapless maidens in Dungeon? Maybe not. After one misguided adventure, Bell quickly discovers that anything can happen in the labyrinth-even chance encounters with beautiful women.

Only problem? He’s the one who winds up the damsel in distress!

Meet Gu Yu—a college dropout and a talented incense maker, and at the same time, the rather stoic protagonist of this story. Despite his somewhat introverted manner, he has a tendency to make sarcastic remarks in his thoughts. One day, after saving a squirrel, a windfall (metaphorically and literally) dropped into his lap. Stumbling into the cultivation world with little help, he was not turned into Superman overnight (as he would like). Apparently, becoming a cultivator would not make your life easier, at least in the beginning.

Somewhere along the road, he ran into Jiang Xiaozhai, a young woman who’s got the brains, the beauty, and maybe one or two secrets of her own. As it turned out, the two made a perfect team—Mulder-and-Scully style. Motivated by many unanswered questions, they had been running up and down the country, getting into all kinds of trouble, and learning more of the modern cultivation world, which is by no means the same as in the ages long past…

- Description from Novelupdates