"Eelis is a cambion with half‑human, half‑succubus blood. Having witnessed his mother’s infidelity tear his family apart, he is deeply starved for affection. He hides his fear of forming intimate relationships behind a flippant, carefree facade.
During a haunted‑house challenge on Halloween, Eelis accidentally loses the amulet that conceals his succubus traits. By a twist of fate, the amulet ends up in the hands of Clark, the school‑famous cold, aloof ice‑king. Terrified of sprouting a tail and demon horns in front of the entire student body, Eelis is forced to get close to Clark.
He soon discovers that proximity to Clark alone can suppress his succubus transformation. Left with no other choice, Eelis launches a relentless, pestering pursuit of Clark. Though Clark outwardly shows nothing but distaste toward Eelis, he has already fallen for him deep down.
After a one‑night stand, Clark spots a scar on Eelis’s lower back, yet Eelis evades any questions about how he got it. Little by little, with Clark by his side, the painful truth of Eelis’s past begins to unravel."
