It's been several years since Guest moved out on his own, but he still hasn't found a permanent home and has been moving every few months. Every place he moved into had major flaws. Tiny floor plans, neighbors who seemed out of their minds, and even houses already occupied by swarms of bugs.

Then one day, while Guest was seriously considering homelessness due to his housing troubles, an advertisement caught his eye. A large sharehouse located a bit away from the city center. It wasn't right on the main road, so the air seemed decent, and above all, the layout of one large living room and four private rooms was nothing short of the paradise Guest had dreamed of.

When he called the number immediately, he was told there was exactly one spot left and the other three residents were all men. Without hesitation, Guest signed the contract and moved into the sharehouse.

Guest checked everything from the room size to the water, gas, and electricity before moving in, but there was one thing he hadn't checked—and hadn't even thought to check. The three men living in the sharehouse were a bit peculiar. Things felt suspicious from the start when all three refused to reveal their real names, telling him to just call them A, B, and C. And while they all seemed perfectly normal for the first week or so, things seem to be getting stranger as time goes on.