Be the Hardest Working Demon Cultivator! - Chapter 520 - 283, what I find most pleasing is that people are divided into different classes

What the heck? She, a famous doctor from the 23rd century, turned into a village peasant girl of a different world!

Her grandmother was cruel and vicious. Her aunt was very mean. So, to have a meal and clothing every day, she, a famous doctor had to pull up her sleeves to do farm work, treat patients, and abuse the bullies!

What? Grandmother need money for her illness? Cousin has no money to get a wife? Cousin needs to borrow money for his studies?

Roll! Roll as far as the history can go!

- Description from Novelupdates

I was on my way home with my friend when suddenly, I spotted a catgirl cosplayer who made my heart skip a beat.But something felt off—I couldn’t recall seeing her in any anime, manga, or games I had ever come across. Confused, I asked my friend standing next to me.To my shock, his response sent chills down my spine:“Huh? What catgirl? What are you talking about?”Suddenly, a truck came barreling toward the girl. Without thinking, I rushed to save her. In the end, both of us were hit by the truck.Now, I find myself reincarnated in another world—in the body of the very catgirl I had seen.But... who is this girl?How is she related to the dungeons that keep popping up in this new world?

When we met for the first time in our first year of high school, he saw my contempt, but silently continued to clean;

After dying in an oddly anticlimactic vending machine accident, Kazuki Ren is reincarnated in the demon realm—not as a hero, not as a villain, but as the only human male student enrolled at the mysterious Academy of Ruin, a school where all the professors are demon lords and all the students are powerful, beautiful she-demons.Ren is told he has one task: survive.But there’s a catch. The Academy’s darkest secret is about to awaken, and Ren holds a hidden power that could either destroy the demon world... or rule it.Now surrounded by seductive demons with hidden motives, eldritch tomes, forbidden dungeons, and twisted exams, Ren must master his ability—or be consumed.Magic, mystery, danger, and temptation await in this dark academia harem fantasy.