MTL - My Brother-in-law is the Prince - Chapter 3 vertical

Lucifer travels to the world of One Piece, binds the system, and obtains the fruit of words and the power of hell demons at the beginning.Everything Lucifer says will become reality, and matter can be summoned or generated through sound.Flash, lightning, fire, ice, magma, gravity, earthquake, all powerful abilities, Lucifer can use.By beheading enemies, Lucifer earns kill points, which buy more powerful powers.Akainu: As soon as Lucifer speaks, my magma can only be used to light candles.Kizaru: As soon as Lucifer opened his mouth, my flash was slower than a turtle.Whitebeard: My Shock Fruit can't shake a rock.Kaido: My immortality has failed.Redhead: Why is my strongest Conqueror's Haki gone?Five Elders: Please, stop talking.Lucifer: I haven't done it yet, why are you so stupid?Everyone: You didn't do anything, but you did.Lucifer: A gentleman uses his mouth but not his hands.From then on, a hell demon who used his mouth to attack invincible opponents all over the world was born.Disclaimer: This is Translation

Distant green mountains, a remote village, an ordinary boy struggling to survive, whose mundane life transforms into the path of cultivation. Who is real, and who is fake? Who can accompany the bright moon to the end? The world of immortals begins from here.

[space + ancient times kingdom building + escaping from famine]

The big shot from the future, Bai Wutong, transmigrated to ancient times with her space pocket! Before she could feel happy, she found herself in a chaotic world! There was murder, robbery, schemes, sky-high prices, and many other things happening all around! The moment she arrived, she had killed two people. Then, she also kindly saved someone, but was deceived and stalked as the person insisted on following her. If that’s the case, then don’t blame her for using aggression in return!

After she finally managed to settle down, she was assigned to the frontier to develop the lands. The remote lands were out of anybody’s control, and there was nothing more that Bai Wutong could ask for. After a few years, Bai Wutong accidentally led the richest man of the previous dynasty, the prime minister, the commander of the secret guards, a great scholar of the dynasty, the holy maiden, as well as the divine doctor… and turned the barren land into a rich, noble town that everyone desired. When the emperor and his ministers came to admire the place, they were dumbfounded. That man who was pouring tea beside Bai Wutong… Wasn’t that the eldest son of the previous emperor, who had been dead for many years?!

A ritual gone wrong gave him the world's deadliest Class—now all he wants is blood.Zeth stole the most powerful ritual magic in the world from a mad cultist. A Class that's fueled by the blood of his enemies and human sacrifice. One that's illegal to use, punishable by gruesome death. And now that he has it, he's faced with a choice: hide away for the rest of his life from those who would hunt him down, or embrace the power, becoming the hunter to get revenge on the murderer that stole his friends' lives.For Zeth, that's no choice at all.His enemies have to die. And he plans to use every drop of blood, eldritch ritual, and demonic summoning he can to kill them.