Kami-sama no Memochou - Volume 7, Chapter 1

“Transmigrate as the Final Villain of the novel...” Ark stared at his reflection in the mirror he held. It was Theos Von Fallen, the final villain of his favorite novel.Although he was the final villain and the strongest in the novel, he was killed by the protagonist and his harem in the finale.[Ding. The Heroine Snatching System has started] Ark gave a crooked smile when he read the system message in front of him... “Exchange!” he shouted, unwilling to accept the fate they had in store for him.Trapped in the world of his favorite novel as the most “evil” and powerful villain, Ark, now Theos, will use his knowledge as a fan obsessed with the novel to take away all the protagonist's opportunities.Whether he can become the focus of the whole show or whether a script will dictate his fate, he will decide! He will live as a true villain who doesn't care about anything but his life and his loved ones.

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

The demon Sang Jiuchi woke up from a seal and found that he was bound to the Quick Transmigration system, and the characters he took over were all without exception, the worst villains.

Blackmailing the top streamer but ended up killing his own despicable tech genius…

The vicious true young master who framed the fake young master but suffered the consequences…

The murderous master who humiliated his apprentice but was killed…

The sinister mermaid who seduced the general and was slaughtered…

The hypocritical pope who deceived people and was burned at the stake…

- Description from Novelupdates

At eighteen, her mother died in a car accident, leaving her all alone in the world. One day, her kindness in rescuing someone led to a life-changing transformation.She was provided with food and accommodation, and someone even arranged for “360-degree personal protection” for her!Just when she thought she had picked up a pie from the sky, she was tied up and sent to a training camp, embarking on a tough yet passionate new journey.Bully her? With Taekwondo, she'll beat you until you can't tell north from south!Compete with her in sniping? Rookies, step aside, she's challenging the strongest sniper!Doubt her hacking skills? Come on, sister will show you what playing with computers is all about!She stood out in the camp with high profile, top in every category, who would dare compete against her?Back home, the little overlord turned into a docile rabbit, utterly bewitching someone!Unable to endure it any longer, he dragged the little overlord to the civil affairs office and registered their marriage.At night, he returned home, and righteously set about 'educating' her!