It is in japanese. Here's what it says KONO SAKUHIN HA FICTION DETHUNODE JITSUZAISURU JINBUTSU DANTAI SONOTA NO SOSHIKI TO DOITSU NO MEISHOU GA GEKICHU NI TOUJYOU SHITATOSHITEMO JITSUZAI NA MONOTOHA ISSAI MUKANKEIDETH. The English Translation for it is somewhat like this: Because this performance is fiction, existing characters, associations and other organizations with similar names which appeared during the play are without exception unrelated. (Source Anime Planet) hahaha the wanted poster knows it's in a performance.