Aether Chronicles: Birth Of A Legend - Chapter 63: How Bright You Can Shine

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.

Found a suitable body named Bai Xiao. Reincarnating into the World of Elementalists.

“Mission: Overpopulation of carnivorous fish in the lagoon.

Please kill 666 carnivorous fish in order to prevent the destruction of the lagoon’s ecosystem.

Reward: 20 Balance Points.”

“Mission: Forest fire.

Extinguish the fire.

Reward: 200 Balance Points.”

- Description from Novelupdates

"Magic is believing in yourself, if you can do that, you can make anything happen."

Ikaris, a genius student admired, exploited, and hated all his life for his brilliance, suddenly finds himself transmigrated into The Forsaken Lands, a fantasy world of myriad species born with the ability to use magic with imagination as their only limit.

Alas, this gift carries a curse. The more you use it, the closer you are to death.

After thousands of years of decline, the Free Races are fast approaching their demise, their survival threatened by this curse and an enemy that will not rest until it has devoured them all. Literally.

Former allies and enemies, prey and predators are now cornered behind a huge wall, forced to collaborate to resist their invader. But can so much resentment and hatred be washed away so easily? Can predators and prey really overcome their instincts in the face of a common foe?

Follow him on his journey from an ordinary human to a shining existence that will overturn the order established since the dawn of time. From an innocent soul to a merciless demon. From a human to something else.

“There are no heroes. In life, the monsters win.”

...

In 2106, [Mayhem Online], a fully immersive VRMMO game, was released. Soon, it dominated the world's economy when people could exchange the in-game currency with real-life currency and vice versa.

In the year 2107, Flynn Grey, a 22-year-old college dropout with an ambiguous history, joined in the fray of billions of people that had already started playing [Mayhem]. Hoping to uncover the game's secret and earn a fortune, he spent months on adventures without fruitful results.

For better or worse, Shura, Flynn's in-game character, ends up in a great Wyvern's den, acquiring a hidden class and a monstrous race. Join him as he defeats his past and paves his way into becoming a true legend in both worlds.