One day Mai never turns up at SPR and Naru finds out it's because she is in a coma in hospital after being attacked. It's up to Naru to solve the case and to resolve his feelings for her before she slips away. NaruxMai

After work one day Mai gets a call from a friend from middle school and was asked to come back to her home town because the class 3-3 calamity has started again. She takes a few weeks off of work and goes to help this friend but on the same day Mai leaves Naru gets a call from the principal of Yomiyama North Middle School for help. What happens when the SPR gang finds out Mai's biggest secret.