Hongdae has more luggage storage options than most neighborhoods in Seoul — mostly kiosk-style lockers scattered around the station. They look convenient on the surface, but during concert season and peak travel months, you'll often see travelers lined up outside them, waiting to drop off or pick up their bags. Here's an honest look at how kiosk storage actually works, when it falls short, and what to consider when you're carrying more than a couple of bags through Hongdae.