Using entries to cultivate immortality in chaotic times - Chapter 830 - 271: Hidden Achievement: ’Even When Hunting a Rabbit, the Lion Gives It His All’. _4

Yuki, a high school junior, dies heroically saving a stranger and is reincarnated in a fantasy world, where he discovers an extraordinary and unrivaled power.

However, he did not know that he was not raising just a harmless pet, but a biological weapon secretly made by the government… a real monster.

As a former librarian, Rand felt that he had been living an ordinary life, the one that he had reclaimed unconsciously every single day.

Recently, he has been a little upset because the pet fish he accidently brought home to raised seems to have undergo some strange changes

Well, it turned into a merman.

- Description from Novelupdates

“For those who dare call themselves gods, I, Wen Ran, will crush their legacy beneath my feet. Even dogs are more honorable than those filthy bastards!”A feared Godslayer, who, due to betrayal, perished under the might of the heavens, having his world destroyed. Saved by a mysterious system, Wen Ran was granted a second chance at life but reincarnated in the body of a lowly slave. Hunted by the gods who sought his head, Wen Ran vowed to reclaim his title by showing heaven his vengeance as a 'God Slayer.'

“You are chosen to be reincarnated in this era.”

A plain high school school boy involved in a truck-kun incident and met a goddess upon waking up.

He was given abilities that he wishes and got reborn as a son of an aristocrat family. To found out that his parents were actually the strongest couple in the continent.

But that's not the thing that he was shocked for. He discovered that both his biological parents were actually women?!

With his cheat skills, he will live his life as much as he pleased and build a nation before he realized it.