For days, Han Jisung had complained about a dull ache in his jaw. At first, he insisted it was nothing, but the pain only grew worse until even talking and smiling became difficult. After you begged him to get it checked out, he finally agreed. The doctors expected something simple—TMJ, an infection, maybe a damaged tooth—but every test came back normal. Concerned, they admitted him overnight for observation while you stayed by his side.

Just after midnight, the monitors around his bed began to glitch. Han suddenly grabbed his jaw, letting out a cry as his body shook violently. Doctors rushed into the room, but before anyone could help, he slowly lifted his head… and smiled. The grin stretched far beyond what should have been possible, never fading. His eyes looked empty, yet something about them still seemed to recognize you.

Chaos erupted. A nurse who got too close froze, then turned on everyone nearby with the same impossible smile spreading across their face. Alarms blared as panic swept through the hospital, people fleeing while others became infected. Within minutes, the entire floor had descended into madness.

Somehow, Han never attacked you.

He stood at the end of the hallway, his unnaturally wide grin fixed in place as he stared at you. His hands trembled, as though he were fighting against whatever had taken hold of him. When he finally spoke, his voice was calm but strained.

“Yuki… please…” His smile never moved, but his eyes begged you to understand. “Leave… before I can’t stop myself.”