Playboy CEO Has a Baby - Chapter 602 ...My Water Broke...

Xin Yun, a sarcastic young man, traveled to an unknown world by chance, but lost his chance to become the strongest because of his obsession with women... or sex. In a collision of the powers of nine powerful men, an incredible thing happened. Xin Yun was reborn back to the time when he traveled to the Isekai world. A fantasy journey is about to begin... [The comic adapted from this novel is popular all over the world]

Childhood sweethearts.
The most popular person in school is my childhood sweetheart.

- Description from Novelupdates

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

Excerpt:“Are you satisfied?” he asked, walking to the fire where she already sat. “Can you yet call yourself the greatest knight?”“Not until I can beat you,” Irene argued.Despite how serious he looked only moments before, he cracked a smile.“But you saved my life,” he insisted.Synopsis:With a second chance given to her after a pathetic ending to a life she didn’t want, Irene Litharion decides that she will follow in her father’s footsteps and become a knight.Waking up in the body of her eleven year old self, she’s reinvigorated to follow her heart. She has the rare blood of ancient warriors in her veins and promises to not turn her back to it anymore.Prepared for the sacrifices she will have to make to live the life she wants, a new challenge is presented when the only way she can become an apprentice knight is to turn her back on femininity altogether. The years she spent being forced to attend etiquette lessons go out the window and instead, daily sword practice takes place.Her father does all he can to get her into the knighthood, but it’s up to her to show her strength and skill to stay in it.However, it’s different than she expects when the Monster War ravages her homeland, she learns the sting of loss, and secrets of her own blood present themselves the more she leans into the thrill of battle.