Катрієль Лейтон

Katrielle is described as being a funny person, who has an active imagination in solving puzzles and cases. She relies largely on her "miraculous instinct" to solve mysteries and jokingly mocks investigators that rely solely on concrete evidence. This causes some like Sherl to credit Kat's success to dumb luck. She'll often give imaginative or complex explanations for mysteries. This all leads some, such as Emiliana Perfetti, to not take her seriously as a detective.

(Source: Professor Layton Wiki)