Why Is Our Professor Like That?

“Was it really such a crime that I didn’t recognize you, Senior?”
At an end-of-semester party, Jung Min-ha is following her crush when she catches herself staring at an unfamiliar senior. Ki Shin-woo keeps making her drink while dropping remarks she can’t make sense of. Before long, she’s barely conscious—and accidentally bangs her head straight into his crotch.
It’s an embarrassment Min-ha would rather forget, and eventually, she does.
Five years later, she’s a graduate student working as a professor’s assistant. But one look at the professor she’ll be working under brings that awful night rushing back.
“Recognize me now, Jung Min-ha?”
Wait. Her supervising professor is Ki Shin-woo?