Invisible Security Guard - Chapter 67

This is a story of a man named Kim Sae-Jin, who one day, inexplicably wakes up as a Monster. Follow him and his perilous journey to get his life back as a Human, all the while growing even more versatile as a Monster in the process. This should be… complicated, somewhat.

There is no battle qi or magic here, only the royal beasts that have multiplied to the peak!

After time travel, Chen Mo awakened the talent of the entry training manual. After completing the challenges, he could endow spirit beasts or himself with various entries, so unscientific spirit beasts were born in his hands.

[Bronze wall and iron wall · Indestructible · Rough skin and thick flesh · Best meat shield · Yuan

A super-meat fox that is immune to…]

[Soul Singer·Actor·Popular Idol·Elegant…] Soul Diva.

[Master of fishing, master of throwing pots, clown, hard-mouthed…] the apostle of misfortune.

Ghost Assassin, Lurker, Son of Light, Fengshen Beloved, Phoenix, Emperor Ou…

【No Heroine】【Not Dark】

The introduction is weak, please move to the text.

Authority for Magical Creatures: 811296620

- Description from novelbuddy

Hyde arrives in a doomed world with nothing but his body and fragmented knowledge of the future from a game he once played. He has no grand ambition—why try to save a world already destined to fall? Survival is enough.That is, until he discovers his sister is also transported into that world.However, only he hears the Melody of Nightingale and receives the power to survive.[You have established a connection with The Forgotten Hollow.]Awakening as a Resonant—an elite group with supernatural abilities—he is thrust into a conflict between two worlds. Armed with the authority of space and time, he vows to protect his powerless sister at all cost, even if he has to fight against the Mirage creatures, other Resonants, or even Gods themselves.

To save a doomed fantasy world, I killed the main characters, then destroyed the game world, and fell into another timeline as the academy's top seat and rival to the protagonist.Now, I'm trying to save the world and steer it towards a better ending…But I'm the final boss.