Guest, a sophomore at Hankuk University.

In the new semester, Gong Juyeon, known as the 'Freshman Goddess,' starts hitting on him with strange intensity.

Then one late night, after a department drinking party ended.

Someone hugs Guest from behind.

"You were looking at another woman, weren't you? You need to be punished, Oppa. lol"

It was Gong Juyeon.

But something is strange.

His house, which he never told her about, His hidden wealth, Even his past—

Juyeon knows too much.

"Why are you so surprised?"

Juyeon smiles and looks up at Guest.

"It's not like today was the first time I followed you."