Humanity collapsed in a single night.

When the sky darkened and a perpetual night arrived, even the strongest monsters turned feral, tearing through cities until nothing was left but ruin.

Dying alone in the ruined world, Ryn Eden Arctis finally understood the truth.

Years ago, he was given a strange skillbook—one the church labeled taboo, one no one dared to touch. But the world had taken it away from him.

However, he knew that—whatever was inside it, had to be powerful enough for him to stop this calamity.

His final regret echoed through the silent wasteland:
“If I had learned that damn book, we’d still be alive.”

With his dying breath, he wished for only one thing:
To go back in time and claim that forbidden power, no matter what.

A single star answered.

Ryn opens his eyes ten years earlier, on the day he received his first skill.

WHAT TO EXPECT:
- Korean Regressor Fantasy, if you like that genre this might be the one for you. Think (Trash of the Count's Family, Swordmaster's Youngest Son, FFF-Class Trash Hero)
- Romance subplot is prevalent. This is not a harem novel!
- MC is NOT naive, and will NOT be afraid to make morally gray choices! Readers advised!

Hello! A lot of the things are going to be explained in-novel, but for those who want a head start or confused and need to come back, this is the index. Enjoy reading!


- A book that gives the reader some sort of Blessing, obtained when they reach 20 years old through a ceremony only done at official Cathedrals, given by a divine deity/god. No two Blessings can ever be the same, although they can have similar powers.


- Blessings vary, classified by Rank. Some can be strong like [Flame Queen (S-Rank)] which allow its user to control flames. While others can be weak or non-combatant like [Sewing Precision (F-Rank)].


- However, a non-combat, high-ranked skill is highly valuable, as will be seen in the story.


- When a person's Essence Rank is high enough, they are able to infuse their aura into a book and create a Technique Book. They are usually passed down in noble families. The book DOES NOT disappear when used.


- When a character uses a Technique Book, they acquire the [Essence] stat.


- [Essence] is the fundamental energy that makes up a person's existence. It flows through the body the way blood carries oxygen. Fueling everything a person is, and can become.


- [Essence] is the primary energy that is used in techniques, and also what powers the [Affinity]. It is one of the two ways one can become strong within the world of FCB. Either getting a good skill, or training your Essence. Those who are truly strong have both.


- [Essence Ranks] go as follows: Trainee, Knight, Master, Peak, and World. Each step is divided into 3 tiers: Low, Mid, and High. To [Advance] to the next Rank, one must go through an event or train so long that they understand their identity, and are one with their Essence.


- The usual stat panel. However, for anyone other than Ryn, it only shows a few things:


- A perpetual and dark night, which caused even the most intelligent monsters to run wild and attack all humans.


Index: