Kuro no Maou - Chapter 456

This is an absurd story of an empress who has traveled to modern times and still insists on rebuilding the Sannomiya Sixth Court without changing her nature.
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Su Junli was very depressed. She inherited a pair of red and green monster eyes, but she is a majestic queen, how could time and space change overnight, and the world was turned upside down, and the beautiful girl in front of her who claimed to be her “Mi Potato” The man called her to “grow vegetables”… You are the only one who grows vegetables, and your whole family grows vegetables. I am the queen!
Anyway, I can’t go back, but the thousands of subjects under the queen’s seat and the thousands of employees under the president’s command are actually the same in management. Since the original “Jun Li” is too useless, let her take over all of them , money, power, status, and of course, those high-quality men who make his heart beat…
An elegant and intellectual personal secretary, a sinister and cunning special assistant, a wild and domineering mafia king, a pure and natural childhood sweetheart, a ruthless No.
The Su family who killed without blood,
In the underworld filled with blood and gunpowder,
Talking and laughing about the ups and downs of the business empire,
Even if every step is frightening, one day, she will stand on top of the world!

- Description from novelbuddy

-The well-known characters of your favourite series get into orgy-In a world where anime universes collide, an omnipotent, perverted god known as The Great Weeb Overlord grows bored of endless power fantasies and shonen battles. Instead of another tournament arc, he decides to host the ultimate crossover event—one fueled by raw passion, unfiltered ecchi energy, and the deepest desires of fandom itself.When Kazuya, an average, luckless otaku, is inexplicably summoned as the “Chosen One” to oversee this legendary gathering of flesh, he finds himself surrounded by the most iconic waifus and husbandos of all time—Asuka, Rem, Bulma, Zero Two, Hinata, Erza, Akeno, Saber, Makima, and many more. Even some of the most unexpected faces (yes, even from wholesome anime) are caught in the gravitational pull of this sinful singularity.As the Ultimate Fan Service begins, Kazuya must navigate the chaotic pleasure-fest while avoiding jealous yanderes, tsundere slap-fests, and the terrifying wrath of overpowered shonen protagonists who refuse to share the spotlight. But with reality itself warping under the influence of peak degeneracy, Kazuya soon realizes there may be no escape… and worse—he might actually enjoy it.Will he survive this NSFW isekai experience? Or will he be consumed by the horny abyss?One thing’s for sure—this is not your average anime crossover.

She, a renowned assassin of the 21st century, actually crossed over to become Su Manor’s most useless good-for-nothing Fourth Miss.

Until he became the lowest-ranked master, his lonely and luckless life never changed.Suddenly one day, a descendant injected him with a nanomachine, and the machine started ‘speaking’ to him.[I am the seventh generation Nanomachine manufactured by Sky Cooperation, and I am operating as a central nerve connected to your brain.]“What? What are you talking about?”This was beyond the boy’s knowledge, he turned pale.The Nanomachine linked to his cerebrum realized the User was not understanding a single word it said.“Who are you, and why are you doing this to me?”[“I am the seventh generation Nanomachine.]“Nano Machine?”[Yes, Nanomachine.]The boy’s face hardened.Mashin was the deity the Mashin Religion worshipped, along with the Sacred Fire.The religions’ Master communicated with Mashin.“Um, are you really Mashin?”The boy knelt down and asked with a trembling voice. At this, the Nanomachine attached to his cerebrum realized it had been misunderstood.