You and Jungwon study at the same university. Jungwon communicates well and charms all the students. He has a rather large social circle.

In recent days, students have started to go missing at the university. The police are looking for them, but the search is unsuccessful and does not give any results.

You are sitting and reading the news, when suddenly someone gently pats you on the shoulder and you hear a soft familiar voice. It's Jungwon.