When the world turns a blind eye to evil, someone must become the darkness to punish it.

After a mysterious tragedy shatters his life, 20-year-old Kane awakens a cursed system called The Sin Ledger—a power that marks the wicked, punishes the corrupt, and grows stronger through the sins he absorbs.

Bound by a contract he never signed, Kane is forced to collect “Sin Points” by hunting down debtors—those who owe karma, justice, or blood. For every mission completed, he levels up… but each decision draws him closer to a horrifying truth: the system is feeding on his soul.

As Kane climbs the ranks of the sinful underworld, he must choose between redeeming the sinner or becoming a greater demon than them all.
He wears a demonic armor forged from guilt, commands powers of fear and judgment, and bears a monstrous second form—the Dread Kirin-Dragon King, feared by all dimensions.

But the true enemy is not just the sinners.

A Celestial Dragon—once a divine being—has descended to erase Kane and his blasphemous system from existence.
The war between heaven and hell begins… and Kane must master his powers before he loses himself to the abyss.

The girl's voice trembled as she stared at Han Jiwoon, his sleeves still stained with blood as he walked away from the underground club.


He simply glanced at her… and disappeared into the darkness.


But because deep down… he knew she was right.


System Notification: Sin Consumption Skill Tree Unlocked


After completing his second purge, a new path revealed itself before Jiwoon.


• Level 1 – Sin Consumption: Absorb sinner's memories


• Level 2 – Shadow Bind: Paralyze target with shadow


• Level 3 – Dread Pulse: Emit fear shockwave echoing their sins


• Level 4 – Hellmark: Mark sinner for recursive purging


• Level 5 – Sin Avatar: Manifest phantom of the Kirin-Dragon Demon


"The more I use it… the more I forget what it means to be human."


Later that night, a new mission prompt appeared:


"Consume the sin of a survivor to earn bonus Sin Points


OR show mercy to gain Redemption Points."


A 17-year-old boy — just a doorman from the previous target's crew — knelt, trembling.


"I… I didn't hurt anyone! I was just guarding the door!"


"Not everyone chooses to be born into evil."


Alternate Path Unlocked: Path of Remorse


Elsewhere that night, another figure walked a different path — Kangmin, Jiwoon's former friend.


He abused his own version of the debt system.


Killed not for justice, but for pleasure.


System Alert: User 'Kangmin' exceeded sin threshold.


Result: Identity erased – Transformed into Sinbeast


A mindless creature born from his own wickedness.


Chapter 3 - EP.3 – The Path of Sin Consumption