The Evil God Summoned by the Saintess - Chapter 49 - 47: Heretic Base Clues

Lou Yao Yao wasted her life fighting over a man, only to find out he wasn’t worth it in the end. Because of this man, she accidentally killed her rival in love, and even ruined the man who had always been watching over her.

Getting reborn as her 20 year old self, there is still time to fix everything. Lou Yao Yao decided to live as a genuine vicious woman. After getting her hands on the loyal like-a-dog man, she would show that cheating couple what pure loving affection looked like.

- Description from Novelupdates

The psychedelic forest was encompassed in a thick cloud of fog, barring the vision of everyone, while behind those thick fog ruled chaos, as countless ferocious creatures fought valiantly.Some distance away, under a muddy patch of grass, a unique little creature stuck her head out from the dark insect egg.“Oh, what the hell is this?”‘Why am I born among this terrifying pile of insects?’The area was densely packed with eggs. Occasionally, one or two fat insects would crawl out from them. They looked scary and hideous.“I think I was playing a game a few moments ago, right? Why did I appear in such a place and become a monster girl?”

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!