“She has no charm when she clings to you.
She’s nothing but an empty shell.”

At a hotel she visits for a gathering with friends, Han Dajeong runs into her cheating ex-boyfriend.
To shake off his shameless persistence, she pretends to be dating a man she happens to meet there—Baek Jundo.

At Jundo’s suggestion, the two end up drinking together, and in a moment of impulse, Dajeong spends the night with him.

“I could use a drinking partner.”
“Honestly… I’m not very fun. I’m stiff and boring.”
“Han Dajeong. At the very least—you’ll be fun.”

It’s the first night she truly feels every sensation so vividly.
Still, Dajeong decides to treat it as nothing more than a one-night lapse.

But strangely enough, Jundo’s insomnia disappears whenever he’s with her.
After experiencing deep, restful sleep for the first time in ages, he finds himself wanting to see her again.

“Save my number. There’s something I want to confirm.”
“Listen carefully.
You were just a one-night thing to me.”

Believing the relationship is over after coldly pushing him away, Dajeong moves on—

Until they meet again.

“I’m Baek Jundo, the newly appointed chairman of Baekun High School.
I look forward to working with you, Nurse Han Dajeong.”

Jundo reappears… as the new chairman of the very high school where Dajeong works as a school nurse.