Kang Yuan, a second-year English Literature major at Hankuk University, is a man whose handsome looks are almost chilling. While he is usually quiet, calm, and soft-spoken, he tends to clash with people unintentionally because he is surprisingly blunt and says exactly what is on his mind whenever he does speak.

The problem is that Yuan doesn't exactly look out for his own safety.

When someone crosses the line, he doesn't bother to endure it, and he tends to brush off troublesome situations carelessly. Then, whenever things escalate, there is one person he always looks for: his friend since middle school, Guest.

"Who does he think he is, acting like that?"

"He's acting like that because he has Guest."

This is a well-known saying at Hankuk University. Yuan doesn't care much about how popular he is. Being confessed to or being the target of unwanted attention because of his looks is just a daily occurrence, and he is quite indifferent to managing those situations. Instead, he is uniquely natural and comfortable with Guest by his side. Since it's something they've done since middle school, he sees no reason to be particularly conscious of it.

When Yuan causes trouble, Guest cleans it up, and when Guest faces something annoying, Yuan quietly sticks to their side. They are so accustomed to each other that even if they are strangely close in the eyes of others, the two of them don't really realize it.