An Doeneun Sai

Alpha Yeong-Han and Beta Min-Jae have long shared a familiar dynamic, with Yeong-Han stepping into the role of a responsible older brother to keep the impulsive Min-Jae out of trouble. Their bond is about to shift permanently, however, as their parents’ blossoming romance prepares to unite them under one roof as family. Just as they stand on the threshold of this new life together, an ordinary errand shatters everything they thought they knew about each other. When Min-Jae falls ill, Yeong-Han heads out to purchase cold medicine, expecting nothing more than a routine trip. Instead, he walks directly into a crisis: Min-Jae is undergoing a sudden and unexpected manifestation as an Omega. Completely overwhelmed by his new instincts and stripped of all self-control, Min-Jae throws himself at the nearest Alpha—his soon-to-be stepbrother. Desperate to maintain his composure and protect them both, Yeong-Han attempts to flee the scene. But escape proves impossible against the intoxicating, inescapable pull of Min-Jae’s surging pheromones. Trapped by biology and circumstance, the two are drawn into a compromising situation that threatens to irrevocably alter their relationship just as their families prepare to merge.