A record-breaking hit! The latest installment in the "DETECTIVE X" series. This time, Shusuke Michio, a Naoki Prize-winning author, wrote the entire story, and it comes with a large amount of investigation materials that look just like the real thing. Enjoy a thrilling experience where a murder case and a missing person case intertwine. For 1-5 players Estimated play time: 3-4 hours 《Story》 At a party in a luxurious resort hotel, the female CEO who successfully developed the "Black Rose" was murdered. Furthermore, the son of the journalist who commissioned the investigation is also missing. I opened it once and played it. No writing. I've put everything back in order. There are no noticeable stains, but it is a used item, so please understand. Immediate purchase is OK. Shipped via Yu-Yu Mercari.