The Royal Military Academy's Impostor Owns a Dungeon [BL] - Chapter 393: Definitive Diagnosis

Somehow, the protagonist Kim Jin possessed a rich pushover extra in a novel who was exploited by the villainess and then met their demise together.But there’s no way Kim Jin would let that happen! He immediately defeated the villainess and locked her away. After that, the only thing left was to steadily enjoy life in this world while investing and extracting profits using his knowledge.But why… the more he punished her, it seemed that the villainess he had captured began to cling to him too much?

Violet skies, a world undergoing massive changes, a deficient moon, interlinking voids…
When the world experienced a cataclysmic event,the majority of living things ceased to exist. Although humanity survived by hiding in the last safe zones, humans had to face mutated dire beasts and colossal source beasts that could break through the space barrier and enter the earth at any second.
Luo Yunyang, a young man who grew up in those calamitous times, obtained an attribute regulator and set out to walk the path of supremacy!

- Description from novelupdates

By the time Li Qingran realized she had been transplanted into a book, she had already muddled through seventeen years.Growing up together as childhood sweethearts with the male protagonist Xie Ying’an, their relationship was rather passable.Endowed with the halo of the male lead, Xie Ying’an was like a hacked character from birth: good-looking, from a good family, with good academics...Li Qingran vaguely remembers that she was a female supporting character in the book, whose ending was not good due to constantly making trouble for the female protagonist.Li Qingran shuddered, feeling all too familiar with this plot; getting involved or not could both lead to trouble, so she needed to come up with some strategies to cope...PS: Unrequited love theme, male and female leads are high school students, and they do not engage in early romance.

Each stroke of good luck is a triumph over someone else’s misfortune.Jack Grim, the son of two legendary assassins, was born and raised on nothing but coldness — and the skills to spill blood.At seventeen, Jack received his final task as an assassin apprentice under his parents.“Succeed, and you’ll run your own organization — live the life you’ve always dreamed of.”For Jack, it was everything he had ever wanted: the chance to finally become the professional assassin he was born to be.He struck his target at midnight, succeeded, and received everything his parents had promised.But in the wake of victory came a pounding headache, a relentless fever—and then… transmigration.Jack now found himself in Raiden’s body — the keeper of the Book of Ashes, the heart of the Devourer, and the very book the coward Raiden had died protecting with his life.Jack had no desire to live in another world, magic or not. He simply wanted to return to his life as an assassin.But duty had other plans. The balance of this world now rested on his ability to protect the book — and like it or not, the responsibility was his to bear.