Tensei Shitara Slime Datta Ken (WN) - Chapter 55: Adventurer Registration

This is a story about Gong Lixin who was the young master of an ancient underground palace in the ancient times. He was raised by his master and forced to partake sexual relationships with numerous people to cultivate his Yin Body. His master who has a Yang Body was going to absorb him after he has reach a level to become stronger. MC refused and killed his master also dying at the same time. Then he transmigrated to the modern time and thinking he will enjoy peaceful life, the end of the world arrived.

Being someone with no special powers except for his martial arts, see how he use his martial arts to dominate the times and find his lovers.

- Description from Novelupdates

[Earthlings! You have been summoned to participate in the Universe's Armageddon...][The first batch of beta testers are now being issued!][A total of 10 million spots have been issued!][You have been selected!]“What the F***” Arthur, a teenager in the slums shouted as he heard the global announcement.[Talent Awakening!][System...Error!][SSS Talent: Primordial Summoner]I was meant to summon a powerful primordial beast that would carry me all the way.So... why?“I SUMMONED A CAT!” He shouted, looking at the cute cat in front of him.By the time the game had merged with reality, Arthur already has dozens of legendary summons to aid him against the forces of evil.[You have summoned the SSS-Level “Primordial Dragon”!][You have extracted the SSS-Level Skill “Berserk”!]

An Individual from Earth finds themselves in the Shinobi World, equipped with a Scientific System. From that moment, he delved into scientific research far ahead of its time.

Zephyr Ashbourne has been a mage for two months. Following one eventful night where he accidentally made a pact with a werewolf deity, he's left with the ability to use magic - much to the dismay of his vampire ex-girlfriend who'd been seeking magic for herself. Now Zephyr is attending a small and selective university for mages half way across the world, the Midnight Court. Though quickly, he learns this new power comes with new problems. His ex-girlfriend, for one, wasn't thrilled when he skipped town without a word. And too, his new dueling partner, Aries de la Fel, seems to find new ways to push his buttons on the daily.A novelization of a playthrough of Covens of Midnight - a slice-of-life, magic school, enemies-to-lovers RPG.