MTL - Diary of a Sturdy Immortal - Chapter 677 The cost is not high

At a young age, I became a thousand-year-old bastard.

Ding! Congratulations to the host, you have obtained the phagocytosis synthesis evolution system.

An earth dragon was found in front, devouring synthetic evolution, the earth dragon tortoise.

From then on, my wonderful career began…

- Description from novelbuddy

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.

An ordinary student, a wretched peeper, a cowardly teenager with a kind heart. In a terrorist attack, he inherited the knowledge of countless elites, embarked on a path of God Jagged Tu…

He is an artist!

He is a mathematician!

He is a psychology Doctor!

He is a master of fighting!

In fact, he is a man

Taken off raw site:

A wretched, dirty young man is working during the summer when he was caught up in a mysterious explosion. After that explosion, the young man is then left with the memories and knowledge of dozens of the world’s experts.

He has changed, his heart has become cold, iron-blooded. He became a killing machine, his mind turned mechanical, calculative. Everything goes according to his plans and calculations!

In this magical, slaughterous world, a door is opened for him…

- Description from Novelupdates

As an international mercenary, Feng Luo entered a technologically advanced parallel world during a mission.

After living several years in the new world, an online sci-fi game called War became popular across the entire Star Federation.

Desert Eagles, Barrett, AK-47, Apache, RPG… One after another, familiar gears awakened his memories of the past!

Terminator, Zerg, Resident Evil, the Force,… The missions that appeared after a system update made him even more suspicious and shocked! As such, Feng Luo entered War and became a sniper.