My Monster Fuses Everything - Chapter 9 - Zhu Xiong

Though he received the skills necessary to teleport across worlds, the king who performed the summoning ritual attempted to trick him into wearing a slavery collar, this annoyed him so he kidnapped the princess and returned to Earth.

As a walk-on, he had been the mistress of his sugar daddy for three year. However, they only had met each other for a few times.
As a boss, his sugar daddy had tons of lovers.
The walk-on: The cake shop is the only thing I love in this world. Lovers? Never want one.
The boss: No problem. Nobody wants that.
Then, they fell in love with each other…
Shameless playboy x heartless rogue
1v1, this is not a decent love novel.

- Description from Novelupdates

27-year-old Hisha, transmigrates into the body of a thousand-year-old overpowered supreme overlord who had everything at his disposal, except one–worthy companions by his side.

Hence, a tournament was held to choose the best out of the most beautiful, unique and strong women across the land.

These women don't follow the rule of coexisting women in a harem, they fight for the right to bed their lord and would stop at nothing but to use every opportunity to seduce, and fight on his behalf just to get his attention and favor.

Hisha never liked such a barbaric method of getting a companion.

'Why choose a few, if you can have them all?'

'If he can't have them all, he would try to work out coexisting the strongest for his pleasure and benefit.'

He realizes his 'Desire System' levels him up with every adoration gotten from his harem. The stronger they get, the higher his level and hold in his world.

As he continues to break his limits with the help of his harem, he finds out there are others that threaten his rule and the balance of his land.

'Let the tournament begin!'

[Fiction from the 1980s] Su Wen read a popular novel about son-in-law in the 1980s. The hero is a tough guy with a sense of security, but at the same time he is a bit dark-bellied and sullen.

It was the style she liked, so with a wave of her hand, she rewarded one million reading coins—and then she became the hero’s scumbag ex-wife.

In the book, the original body, as the head of the family who recruits a family at home, does not want to stand up for the family, but is a love brain. Don’t want to have huge golden thighs, but was instigated by the little white flower heroine, and fell in love with the scumbag from the next village.

After Su Wen came through, she hugged the male lead’s golden thigh tightly, and worked hard to make money and become rich. As a result, the younger sisters were too competitive, crying and shouting to recruit a son-in-law at home like the older sister, and they gave birth to a baby with the surname Su.

So, Su Wen started the rhythm of choosing her son-in-law every day, all of them are handsome and talented. One body is better than the other, and the family background is better than the other. It’s so hard to choose!

Someone who was left out aggressively blocked her behind the door: “Am I handsome? Is my figure good? Is my family strong?”

Su Wen: “…But they are my sister-in-law.”

“My whole body is yours. I will give you the passbook, and I will give you my life.”

The next day, Su Wen woke up and looked at more than twenty passbooks, lost in thought…

- Description from novelbuddy