The game is divided into four chapters, each involving a separate trial:
Trial 1: Witness the rise of Gensokyo's first defense attorney as Cirno is put on trial for breaking a camera belonging to Rinnosuke.
Trial 2: After an explosion at Eientei leads to the theft of a pot, Aya has to defend the most notorious thief in Gensokyo.
Trial 3: An unlikely candidate is accused to poisoning Suika with "Oni Killer Sake," putting her into a coma.
Extra Trial: Aya faces overwhelming evidence as an unpopular celestial is accused of stealing. How will Aya overcome the overwhelming evidence against her?