Toaru Majutsu no Index: New Testament - Volume 9, Prologue: The End of a Certain World. Game_Over.

As a boss with space plant abilities in the apocalypse, Lu Yao once traveled to the future, became the director of a nursery school that was about to close down, and became a rare animal human on the verge of extinction.
The food she made at random can cure the genetic disease of the cubs in the welfare home. She punched the cubs’ scum fathers and scum mothers, and kicked the remarried families who abandoned the cubs.
It is such a good kindergarten successor dean, who is attracted by that single cool imperial marshal!
Since then, the barrage in the live broadcast room has become:
Imperial Citizen A: Dean A, I really want to marry.
A certain big black dragon: Shut up! This is your marshal’s wife!
CP: Dean Lu Yao, who is extremely protective of short-sightedness and loves cubs, X the imperial marshal Helanjia who loves Shang Yunxi more than cubs
Brief: There are no bad cubs, only bad big ones.

- Description from novelbuddy

Hong Heeju is a sign language interpreter who has become mute due to severe depression.For three years of their arranged marriage, she and her husband never exchanged a single conversation.One day, her life takes a harrowing turn when she’s taken hostage.‘Don’t hang up! This isn’t a phishing call…!’However, her husband, who was even worse than a stranger, coldly disconnected the call.– “Call me when a body is found.”***You $%#£! He’s such a jerk!Overwhelmed with anger, Heeju decides to threaten her husband anonymously.The problem is that he was a well-known spokesperson for the Blue House.– “Can’t you send threats on time?”“That…”– “Here I’m anxiously waiting for my blackmailer’s call.”“What do you…”– “Are you playing around with someone else besides me?”“…?”Wait, is this the same sociopath husband I knew?——–TL/N: ‘Blue House’ was the official residence and office of the President of the Republic of Korea from 1948-2022.

As a successful villainous BOSS, in addition to having ideas and aspirations, one must also keep in mind three points:First, grow sneakily, don't act rashly (once a villain acts rashly, they basically won't survive past three chapters).Second, you're not a good person, so be ruthless (becoming more evil will make you three times stronger, while redemption weakens you by seven times).Third, remember the two points above. The moment you forget them, your end is probably on its way.

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