The anime will adapt the Shunki Gentei Ichigo Tart Jiken (The Case of the Springtime Limited-Edition Strawberry Tart) and Kaki Gentei Tropical Parfait Jiken (The Case of the Summertime Limited-Edition Tropical Parfait) novels in Yonezawa’s series.
The novel series also includes the two Shuki Gentei Kuri Kinton Jiken (The Case of the Autumn-time Limited-Edition Candied Chestnuts and Sweet Potatoes) books and the Paris Macaron no Nazo (The Mystery of the Paris Macaron) book, as well as other non-compiled stories.
The latest novel, Tōki Gentei Bonbon Chocolat Jiken (The Case of the Wintertime Limited-Edition Chocolate Bonbons) will release in late April.
The novel series has had several manga adaptations, including Anko Manjūya’s Shunki Gentei Ichigo Tart Jiken, which ran in 2008-2009 and has two volumes.