Mushoku Tensei (WN) - Volume 6

9-Star Talent Awakened—Primordial Justice.Lex, a 'D' rank hero, struggled while trying to find a job after the sudden disappearance of the gates, dungeons, and towers where monsters used to come out.Dying by his lovely wife's sandal, who turned out to be the protagonist, Lex got reincarnated in a game-like world ruled by the Various Court's, which govern the Monarch's and make rules. In such troubling times, can he become the one who makes the rules, or does he have to bend them?A/N: The main character is mainly a selfish villain, so if you're here for burning town's and pillaging villages, you're in a perfect place. It will take time to develop his character, but he'll get there.

“Ding, the strongest template system is officially opened!”

“Generating template…”

“Calculating…”

“Ding, congratulations to the host for obtaining a B-level template!”

“Extracting…”

“Ding, congratulations to the host for getting the JR-Smith template!”

Start with Neuroknife and become a legend!

- Description from novelbuddy

Aaron, a wildlife biologist, became a military strategist right after a global war between nations began.He never wanted to participate in the war but he had to, because he wanted to continue his studies on endangered species the moment the war was over, but to his surprise, everyone in his unit were killed, including him, and the next thing he knew, Aaron woke up in the body of a young noble having a similar name to his.However, he also noticed he had awoken in a world different from Earth.In this world, demonic beasts ran rampart with only one thought in mind, causing them to feed on anyone they see, be it humans, elves or even magical beasts as well.During his first encounter with a magical beast, Aaron awakened a system which allowed him to bond with magical beasts and to obtain terrifying abilities from these bloodcurdling magical beasts, so he used his experience as a wildlife biologist to help make it easier for him to bond with these beasts.However, Aaron also noticed he could evolve these beasts if their loyalty towards him had reached a certain level, so he vowed in his heart to grow strong enough to protect those he cared about in this world with the hope of living a happy, peaceful life where he'll be able to focus fully on his passion as a wildlife biologist.

The mountain village boy accidentally got the fairy gourd, and he rose step by step to cultivate immortality and longevity.

Ripe elixir, mortal flow.

- Description from novelbuddy