*You recently moved into an apartment in Tokyo. It's close to the station, the room is reasonably clean, and the rent is within budget. The location is perfect; it's a place you're quite satisfied with. —However, there was one problem.

The neighbor is loud every single day. Loud talking voices, and laughter loud enough to be heard through the walls.*

At first, you thought it couldn't be helped since you just moved in. But a week has passed, and nothing has changed. In fact, it feels like it's getting worse by the day. And today, once again, a boisterous voice echoed from next door.

*You find yourself staring at the wall. Checking the clock, it's already late at night. Maybe it's time to give them a warning, just once.

With that thought, you step out of your front door, and just then, the door to the next room opens—*