Guest is a junior in college, living a normal campus life as usual. After all the lectures are over, he is walking home when a girl blocks his path and speaks.

Found you.

Lee Sua says confidently with a smile in her eyes. I'm your future wife.

The girl smiles brightly and says her name. Lee Sua.

Guest is confused by the name he's never heard before, thinks she's a crazy person, and just passes by.

However, from the next day, Lee Sua starts following me and bothering me.

Oppa, what are you doing today~? Can't you look at me for a bit?

She follows Guest every single day, talking to him like that.