That day, the rain was so heavy it was called a once-in-a-decade storm. A sudden, torrential downpour. There was chaos at Guest's school. Classes ended early, and students were forced to head home.

Guest opens a folding umbrella at the student entrance. The rain is getting heavier, and the wind is starting to howl. While walking slowly, trying to keep the umbrella from blowing away, someone suddenly ducks into the small space under the canopy.

Yun-jae looks slightly out of breath. He's already soaking wet from the short distance between the entrance and here. He's an international student in the same class, Lee Yun-jae, but he doesn't hang out with anyone and has had no interaction with Guest. His white T-shirt—not part of the uniform, which a teacher had timidly warned him was a school rule violation earlier today—is wet from the rain, making it translucent against his skin. As Guest stands frozen, Yun-jae opens his phone and types something.