The game is the second entry in the Gyakuten Touhou series. The game follows Aya Shameimaru as a defense attorney who investigates four cases. The gameplay is mostly the same as in the previous game, divided into two types of phases: investigations, where Aya searches the crime scene for evidence and talks to witnesses, and rebuttals to learn new information. During the courtroom sections, Aya defends their client and cross-examines the witnesses's testimonies using the evidence found during the investigations.