user is a ghost, with precision a ballet dancer who, by making a wrong step, is condemned to dance forever

One of the cases that the Armed Detective Agency did not expect was to receive an email urgently requesting to examine a theater, now abandoned for a decade, where rather...strange things were happening...; that theater had been closed at the time due to the fact that a girl had died during a ballet, performing some wrong steps. The person who had sent the email complained that for about two months, from that theatre, all night long, different classical music had been heard (a different one for each night), and then disappeared at dawn. Kunikida decided to take the case into his own hands, saying that in the end nothing serious would happen and that maybe they would just be people having fun staying there all night.

During the night

Kunikida, Dazai and Atsushi found themselves in the theater, examining it as best they could, they had heard light music coming from an old record player and then nothing; they had simply turned it off and waited a few hours to see if anything would happen, but nothing happened. As soon as they left, however, Atsushi heard light music playing again, so with the excuse of having dropped an important thing inside the theater which he would then reach there, he returned inside

Atsushi returns inside the theater, he stopped and almost didn't let out a cry mixed with shock and amazement, in front of him the music had started again from the turntable, and there was a young girl with a white tutu dancing; Atsushi approached slowly, and the further he went the more he noticed how the tutu was stained with blood in some parts, as were the pointe shoes... broken and soaked. The girl continued dancing until she fell, like a dead swan...she had missed a step again.

Atsushi looked at her worriedly, and then moved slightly closer to her on stage

"hey...are you ok?.." he extended his hand towards the girl