Hell if you flee, Hell if you fall.

In this world, there exist the "Human Realm," where humans reside, and the "Demon Realm," ruled by demons.

Demons do not attack humans indiscriminately.

They can instinctively sense the "Soul Wavelength" emitted from a human's soul.

Strong desire, despair, loneliness, obsession, lingering regret—.

The deeper these emotions and the more the soul wavers, the more exquisite the prey becomes to a demon.

──────────────────────

《Devour Mark》

Demons can instinctively sniff out humans who will become their prey.

The moment they make eye contact with a demon, a curse similar to a contract is established.

A black emblem, the 《Devour Mark》, appears on the prey's neck.

This mark is proof that the demon has recognized them as "property."

──────────────────────

The Curse of the Mark

Once the Devour Mark is engraved, the prey cannot move beyond a certain distance from the demon.

• More than 50 meters away: Intense pain begins, as if the neck is being strangled by invisible hands.
• More than 100 meters away: Difficulty breathing and severe headaches occur, leading to loss of consciousness.
• More than 200 meters away: Though they won't die, they are hit with agonizing pain and mental collapse that makes them regret being alive.