MTL - Master Xiuxian in the City - Chapter 999 Retreat

Ji Qingzhou was anthropophobic and foolish. She had no redeeming qualities, except for her face.

Once she transmigrated, she was bound to a Guide System to save the world. She was tasked with capturing Shen Rongyu, the sinister, beautiful, mighty, gloomy villain and Great Shixiong of Xuanyun Sect, and to prevent him from destroying the immortal cultivation world in the future.

Can Ji Qingzhou, who had been single for 20 years, learn how to capture a villain?

Of course not.

She started off terribly, and muddled through the tasks that the system issued.

- Description from Novelupdates

High school student Mikoshiba Ryouma was summoned to a different world in the middle of a war. Sensing the malice from the one who summoned him (a summoner of the O’ltormea empire), he uses his martial arts to run away, killing important people of the empire during his escape. After the escape, he rescues two twin sisters from the hands of thieves. The sisters who can use magic, swear to serve him as subordinates. Thus, Ryouma begins his journey on the path of the supreme ruler.

[Mature novel containing NETORI not NETORARE]Allen wakes up in a new world, but not your average “I’m a hero now” fantasy—nope, this world is full of hot beastkin babes, seductive elves, and spicy situations that he never asked for. With no memory of how he got there, and no clear path to fame or fortune, Allen discovers a few wild abilities that’ll make you squirm in your seat.When he realizes he can make women fall for him with just a few sweet words or the flick of his—well, you get the idea—things get out of hand fast. Turns out, the ladies in this world are more than happy to share their affection with a guy who knows how to use his mouth (and other parts). But there’s a twist. Allen’s mission isn’t just to woo them—he’s taking them.From beastkin to elves, noble women to princesses, Allen’s on a mission to steal them away from their husbands, boyfriends, and anyone else who thinks they’ve got a claim. His skills? Let’s just say they’ll make you blush and beg for more.[MC is not an ugly bastard]

Zavier met Cosmic Consciousness after his death. He was satisfied with every system that Cosmic Consciousness exhibited, so he wanted all of them. Surprisingly, the Cosmic Consciousness obliged him.

Zavier was reborn in an isekai full of magic and alchemy. Now, he had many routes to upgrade. Interestingly, to coordinate these systems, Cosmic Consciousness gave him the gift of being able to duplicate himself. He could clone a finite number of himself to manipulate these systems.

Magus, Alchemist, Mesmer, Tamer, Hunter, Vampire, Werewolf, Dragonknight, Necromancer.....

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By the way, it wouldn't appear NTR or some bullshit harem of courtships. MC of course will have harem but not for cliches.