Layton Mystery Tanteisha: Katori no Nazotoki File is an anime television series produced by Liden Films. Centering around characters from Level-5's 2017 video game, Layton's Mystery Journey, part of the Professor Layton franchise, the series began airing on Fuji TV's Adventure Sunday programming block from April 8, 2018 and concluded on March 31, 2019. Novelisations of episodes 1-9 and 11-13 were published by Shōgakukan's Junior Bunko in four three-case installments.