Man, I spent way too long trying to pin this down. 'Empty Room' isn't the most common title, and it gets mixed up with stuff like 'Empty Rooms' or ones with similar vibes. From what I've pieced together from forums and some scattered raws, the central figure is this guy who ends up living in a literal empty room—like, bare walls, no furniture, the whole minimalist nightmare. It's less about a traditional 'hero' and more about a person in a profoundly isolating situation. The narrative follows his internal monologue and his weirdly transactional, detached interactions with the few people who drift in and out.
Honestly, calling him a 'protagonist' in the active sense feels a bit off. He's more of an observer in his own life, which is the entire point. The manhwa uses his passivity to explore themes of urban alienation and the weight of empty space. If you're looking for a character who drives the plot with bold actions, this isn't it. The room itself is almost the co-star, and he's just the guy haunting it.