Book (Practical) Children's book The Mysterious Bag of the Devil's Puzzle and the Black Partner / Eto Amakawa Shueisha Mirai Bunko

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

Children's Book
Shueisha Mirai Bunko / "Devils are partners are not allowed!" A shy boy who loves books, Aoba Mori, finds an old bag with many keys in his study at home. The keys contain the devils, but the seal melts and they are scattered around the city! He doesn't like Aoba, but he collects the devils together with "Marko Shea", a demon in the shape of a puppy? This is the winning work of the 9th Mirai Bunko Grand Prize and Grand Prize!