雷顿神秘侦探社 ～卡特莉的解谜事件簿～ leidunshenmizhentanshekatelidejiemishijianbu

　　Layton Mystery Tanteisha: Katori no Nazotoki File (Layton Mystery Detective Agency: Kat's Mystery Solving Files) takes place during the events of 'Layton's Mystery Journey: Katrielle and the Millionaires' Conspiracy'.