Mercenary System: I can increase innate potential ! - Chapter 189: Vatar arrives on the battlefield!

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.

Crossing to One Piece world, he became Roger’s younger brother.

I, Ning Daoran, have achieved what I have today step by step, relying solely on my own efforts!

“Release faster! Why aren’t today’s chapters out yet?”“… Senior Sister, it’s only six in the morning.”“Then what about yesterday? There was only one chapter!”“… Romance slice-of-life stories rely heavily on the details. Inspiration is needed when writing.”“Then, where does your inspiration come from? You’re clearly single.”“… My imagination.”“In that case, why don’t you date someone? You can get some material too.”“… I need to write. I don’t have time.”“How about I help you?”“… Help me write?”“Of course not! I mean dating!”“… Senior Sister, stop joking around.”***This is a slice-of-life university love story between a struggling web novel author and a beautiful illustrator, in which they mutually suffer social death.Single female lead, no melodrama, no angst.