Bound to a Devil from the Start! I Slaughter My Way Through the Abyss with Lies

High school senior Su Wang witnesses a classmate being swallowed by black slime. To save his younger sister, who bears a mark of sin, he is forced to sign a blood pact with Azazel, the King of Lies!

A mark of sin is branded onto his left arm, awakening god-defying powers such as manipulating lies and projecting domains of sin.

Hunted by the Holy Mark Council and coveted by devils for his soul, he establishes the Eye of Shadow in the depths of despair. Wielding lies as his blade, he fights his way through the gap between the abyss and humanity!

When a secret message about a key appears on his sister’s chest, the devil’s true purpose is gradually revealed...

Does this pact lead to redemption, or destruction?