The Sleepwalker’s Mansion

※This work contains content that may be triggering, including non-consensual sexual activity, unethical elements, and sexual harassment.※

“Doeon… you have to… protect the mansion… in my place…”

Seo Doeon has been caring for his sick mother, completely cut off from the world. Left alone with her dying wish to protect the mansion, in front of Doeon appear his father, Seo Taeoh, who left after divorcing his mother 19 years ago, and his younger sibling, Seo Doha.

Though they are family, for Doeon—who has spent his whole life hiding that he is a dominant Omega and pretending to be a Beta—the dominant Alphas before him are nothing but strangers…

“How about staying with us for a while?”

Thus begins a strange cohabitation. But suspicion that they might try to take the mansion, his mother’s inheritance, makes Doeon increasingly anxious. To make matters worse, Doha discovers a trait that Doeon has been hiding…

“Seeing that you’re reacting to my pheromones, you really are an Omega. And since your pheromones are faint, you must be a dominant one. Too bad, hyung.”

A single mistake quickly turns their already fragile relationship sour.

“You’re the only Omega in our family.”

Inside the mansion, cut off from the world, unfolds a twisted obsession among the three. What will collapse first—the mansion, or Doeon’s heart?