While preparations are underyway, Emma, Norman, and Ray are now "training" the other kids so they can get stronger and be ready when the time comes. But despite Mom's orders, the new Sister Krone has her own plan…

Naofumi has obtained a whole load of abilities and skills, and his teamwork with Raphtalia is reaching perfection, too. To prepare for the incoming Wave, he upgrades their equipment and heads to the dragon hourglass to find out exactly when it will arrive. But there, he runs into Motoyasu and the other heroes once again.

At school, Hinata and the others are told to make an original board game for class, and the theme they choose is nothing other than "Mya-nee"! Miyako can't hide her anxiety when confronted with a board game designed to help her be less shy, but then she realizes it's a chance to get closer to Hana-chan. She gladly joins in, and what awaits her is...

Reigen sets up an official homepage for his Spirits and Such Consultation Office and he immediately starts to get jobs left and right, including a middle-aged man asking Reigen to curse someone and a woman who's being haunted by a ghost. As he was listening to their problems, Mob realizes something. Why do people treat humans and spirits so differently? Meanwhile, Reigen gets another request from a group of college students that want to take a photo at a haunted location, but...