The Palaces of the Twelve Sacred Beasts - Chapter 17

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates

At 18, Alex Kain is whisked away to Eryndor, a game-like realm where he gains 'Skill Synthesis', a talent to fuse skills into godlike powers. Battling monsters and conquering dungeons, he builds a harem of strong women drawn to his might and charm. With the power to return to Earth bearing incredible resources, Alex faces a growing threat that endangers both worlds in this epic of adventure, romance, and ambition.

Living a dual life, Lucas was a meek boy in school and a Wire Knight on the Internet at night. Surprisingly, he's asked out on a date by one of the most beautiful girls in school.

However, the date ends after a bizarre sequence of unfortunate events, he gets isekaid into another world.

Lucas received a rebellious system and some strange pills as rewards which released the dormant evil within him. He has to control the rooting darkness coming from the previous protagonist of that place and learn how to control his power.

The system promises to fulfil one wish if he will win the game he was sent to. This motivates him to help his sister to get better and become healthy again, he must obey the system and win the game to be granted that wish no matter what.

To form a team with another human, an elf and a so-called 'sex machine'. Lucas has to collect all the avatars and learn how to control them, wield the weapons that were given to him and win the tournament of the place by killing the black wizard.

Time is quickly ticking and there's a huge mess for him to reverse. Starting from his date who suddenly was transformed into a dragon!

Ye Feng had mutated, his body can obtain the corresponding superpower according to the information he heard!

His deskmate, Wang Qiang: “If only I had an expert hacker as a friend, that’ll be great!”

Computer amateur Ye Feng immediately turned into an expert hacker. Anywhere with the Internet was his territory!

Wang Qiang: “Brother Feng, do you want to learn martial arts?”

The moment he said that, Ye Feng had a burst of strength and became a martial arts grandmaster! Girlfriend: “Ye Feng, do you know how to drive?”

Ye Feng was about to say ‘no’ but in the end, countless pieces of information flooded his mind and he immediately became a veteran driver! …

“Please stop talking, everyone!”

In less than a year, Ye Feng was omnipotent. He had a look of distress, feeling like he’s not even a human being but an omnipotent almighty expert!

This book is also called “Am I really a human being”, “I really don’t want to be omnipotent” and “Why is it so hard to not be an expert ah”…