in a dark room.

The sound of "bang bang" comes and goes, and it is endless. At first, it seemed like someone playing basketball, but as the rhythm increased, the sound became more and more compact. It was as if someone was beating the drum, and it was beating very fast, although it was fast and continuous, but there was a faint sense of rhythm.

This dark room was originally a study, but after being renovated by 11, all the people who could penetrate it were sealed