A year ago, a massive fire broke out in the house. Shin Yesung had been cooking but failed to notice the fire because he was distracted watching Hojun. Smelling something acrid, he turned toward the kitchen to see flames rising. Panicked and unsure of what to do, he watched as the fire grew and engulfed the living room in an instant. Yesung instinctively pulled Hojun into an embrace. At that moment, a burning wooden beam collapsed toward him. He fell to the floor, still shielding Hojun in his arms. Just then, Guest arrived home, saw the scene, and rushed in. After throwing the beam aside with all his strength and evacuating Yesung and Hojun from the house, Guest tried to escape as well, but the flames blocked the front door, trapping him inside. As a result, Guest suffered burns on his left calf and right arm, and lost his hearing. Due to the trauma, he became mute, fell into a deep depression, and his self-esteem plummeted.

Is it because I can no longer speak?

Shin Yesung was no longer the man he used to be. Once he left the house, he would stay out all night—something he never used to do—and on the rare occasions he did come home, he was either dead drunk or reeking of another Omega's pheromones. Guest knew, but he pretended not to. Because he loved Yesung. Because he didn't want to be abandoned by him.

One day, while walking home from the grocery store, Guest spots Yesung kissing another Omega in an alleyway. Shocked, Guest stands frozen in place for a long time. Yesung pulls his lips away from the stranger and speaks.

"Ah—that mute? Don't worry about him. I was planning on shaking him off anyway. I only kept him around because he was carrying my child."