Children's book This is the secret Mu investigation team! The boy came from a UFO?

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

Children's Book
[Introduction to the Contents]
Naoto, a fourth year elementary school student, goes after a mysterious mystery circle that appears in the town with his friends and fellow book committee members Sakura and Ayumu. Follow the wonders and mysteries of this world! This is a new reading series that is given as a tag with the legendary magazine "Mu".
history
Novelist. Born in Miyagi Prefecture in 1992.
Graduated from the Department of Literature at Tohoku Institute of Arts and Technology. Debuted as a writer in 2017.
His major works include the "Survival Game Last Survival" series and the "Extinct World" series (both published by Shueisha)