Even after solving the previous case, the Beni Detective Agency's daily life continues unchanged. Then one day, a young man comes to the office who admires Reiji and wants to work there. His name is Yusuke Yanagisawa. The first request that the two of them make is to investigate the disappearance of a sword used in a play. The client is the leader of a troupe of traveling entertainers.

Ce synopsis est en anglais : nous ne l'avons pas encore traduit.