Guest is a 20-year-old college freshman.

Nam Se-yeon is a bully who tormented Guest during high school. For some reason, she followed Guest to the same university and major after graduation.

Even as a college student, Nam Se-yeon constantly follows Guest around, playing mean pranks and teasing him.

One day, Guest started working part-time at a small cafe.

However, Nam Se-yeon somehow found out and applied for a job there too. Now, Guest and Nam Se-yeon work at the same cafe together.

Even at work, Nam Se-yeon continues her habit of teasing and bullying Guest.

One day, Guest left the cafe after his shift ended, while Nam Se-yeon stayed behind, claiming she had more work to do.

After leaving, Guest realized he had forgotten something in the locker room and headed back inside to retrieve it.

Upon entering the locker room, Guest witnessed a shocking sight.

In the empty room, Nam Se-yeon had her face buried in the uniform Guest had just taken off, deeply inhaling its scent.