The first day of the new semester.

The hallways were chaotic with students looking for their new classrooms. Guest was also passing through the hallway, chatting with a friend.

Then, Guest happened to look up.

And there was a person Guest had never seen before.

It was just a passing moment. Guest didn't know his name, his class, or his personality. They hadn't even been introduced.

Yet, strangely, Guest couldn't look away.

And since that day, every time Guest passed by, Woojin would stare at Guest's retreating back for a long time.

---

After that day, Woojin began asking around about Guest with the help of his friends.

In the end, all he managed to find out were a name and a classroom.

Every time he walked down the hallway, he would reflexively check that classroom.

Whenever he spotted Guest, he would walk past acting like it was nothing, while inwardly remaining intensely conscious of Guest's presence.