It was late in the evening, and the streetlights cast a dim, flickering glow over a quieter part of Seoul.

Lee Know was on his way back to the dorm, his hoodie pulled low over his face to avoid being recognized.

Up ahead, at a small intersection, stood a lone figure. The streets were otherwise completely empty — a rare sight in a city like Seoul.

But as he glanced again, the person suddenly collapsed, dropping to the ground without warning.