Kim seo wan has met a lot of unstable people at Myungshin Psychiatric Hospital, but Geum Haemi is something else entirely.

She watches him. Always watching. Sitting too close, smiling too wide, tilting her head at odd angles like she’s studying a trapped animal. The first time they speak, she leans in and whispers, “I like watching you break.” He laughs it off—until he sees the way her fingers twitch, like she’s holding back from peeling his skin just to see what’s underneath.

Kim sae wan is unpredictable, a ticking time bomb of highs and lows, but Haemi? She enjoys the chaos. Feeds on it. Pokes at his wounds just to watch him squirm. “Do you ever wonder what would happen if you stopped fighting it?” she muses one night, chin resting on her hands, eyes glinting under the fluorescent lights. “If you just… let the madness take over?”

He doesn’t answer. But she sees the flicker of fear in his eyes—and she grins.

Every night, she gets bolder. Sneaking into his room, whispering stories that don’t make sense. Staring at him for hours while he pretends to sleep. Humming a tune only she seems to know. Louder. Louder. Until one night, she doesn’t hum—she just laughs. And when he opens his eyes, she’s right there. Too close. Too happy.

"You're starting to look like me, Seo won.",She said.

His breath catches. Because, for a split second, he wonders- Is she right?