Omae wo Onii-chan ni Shite Yarouka!? - Volume 3, 15th of May, Wednesday.

They say meeting your soulmate is destiny, a beautiful collision of two worlds meant to be together....But why did my “fated encounter” have to be a head-on collision with Cassidy Valentine, the most hostile, entitled, and terrifying girl at Hartwell Academy? And why did it involve ruining her limited-edition blazer with cheap bodega coffee?I'm Isaiah Angelo. I run on three hours of sleep, instant caffeine, and the desperate need to secure a future for my little sister. I don't have time for drama. I definitely don't have time for romance.So, naturally, the universe decided to play a cruel joke.I didn't just make an enemy of one rich girl. I stumbled into the lives of four.The Valentine Quadruplets. Identical faces, four distinct flavors of trouble.Now, I’ve been hired as their live-in personal assistant. I’m trapped in a mansion with the four most desirable—and impossible—girls in the city.Cassidy, the “Problem Child” who has sworn to make my life a living hell.Harlow, the overly affectionate airhead who thinks snacks solve all emotional trauma.Vivienne, the ice-cold perfectionist who wants to micromanage my breathing.Sabrina, the silent observer who looks at me like I’m a puzzle she’s dying to solve.The pay is life-changing. The job is suicide.Can I keep my scholarship, raise my sister, and manage the chaos of the Valentine household without losing my mind?I have a mountain of debt, a schedule from hell, and four billionaire heiresses who suddenly seem very interested in the “scholarship boy.”This isn't a job.This is a survival horror game wrapped in silk sheets.WHAT TO EXPECT:- Ecchi Situations: The Valentines have zero concept of personal space, and the “accidents” are frequent, spicy, and very visual.- Harem Romance: Four identical sisters, one tired protagonist. The competition is fierce, the tension is high, and the jealousy is real.- Competent Protagonist: Isaiah is smart, hardworking, and sharp-tongued. He isn't dense; he's just too exhausted to deal with their thirst.- Class Gap Dynamics: A gritty look at the difference between the struggling working class and the absurdly wealthy elite.- Heartwarming Family Moments: Because behind the fanservice and comedy, Isaiah is doing it all for his little sister.

One day, billions of young and middle-aged people around the world were pulled into an underground palace survival game.

If you want to survive, you have to fight with dungeon creatures to get resources.

When others are struggling to kill a mosquito, Liu Yang has acquired the skill of instant kill…

[You slashed at the underground palace ant, and the instant kill skill was triggered, and the underground palace ant died. 】

[Congratulations for killing an ant in the underground palace and getting wood x1. 】

[You cut off the tail of the underground palace mouse with one knife, the instant kill skill is triggered, and the underground palace mouse dies. 】

[Congratulations for killing the underground palace mouse, get stone x3, small map x1, apple x3, and spiritual energy x1. 】

[You hit the butt of the wild boar with one arrow, the instant kill skill is triggered, and the wild boar dies. 】

[Congratulations for killing the violent wild boar, you get an ordinary wooden home upgrade scroll x1, and spiritual energy x1. 】

……

So, Liu Yang took off.

When others are still exploring carefully, he is armed to the teeth and invincible.

When others were beaten to death for a piece of bread, he traded so much food with others.

Even with fine wine in hand, beautiful woman in her arms, so chic…

ps: This work is very different from other survival genres. Please do not substitute the settings of other works when watching.

- Description from novelbuddy

Once upon a time, there lived a person consumed by the desire for revenge.After finally achieving his goal of seeking revenge against all of his enemies, he was ultimately sentenced to death. Though he accepted his punishment, he suddenly found himself standing in an unfamiliar and surreal place, as if caught in a hallucination during his final moments. As his consciousness began to fade, a distinct voice accompanied him and whispered—”Welcome to Hell!”

Three years after graduating from Hogwarts, Felix entered the school again, only this time as a professor!

What kind of sparks will come from the combination of Muggle wisdom and magic?