Professor Layton and the Cheerful Mystery is a manga based on the Professor Layton series. It was first seen in a Special Edition of Bessatsu CoroCoro, a Japanese bi-monthly manga magazine, and is written by Sakura Naoki. The series is narrated by Luke. The stories in the books are focused more on comic relief than mysteries and puzzle solving. Both Professor Layton and Luke have very different personalities. The book does however include a few puzzles, which can be solved by the reader if desired.