Now that she's in middle school, Sakura's having a lot of fun with her new friends, and these days she's busier than ever. But one day when she's about to have dinner, she's transported away by a mysterious darkness. She glimpses a huge clock with a mysterious figure standing among the gears--but what is that figure trying to tell her?

This book reads from right to left. First published in Japan in 2017 by Kodansha Ltd., Tokyo.