Tsurara Takahashi is a middle school student who belongs to the Shinzen tennis club. However, she carries a great misfortune that she cannot confess to her friends: she met the mysterious Mahou Shoujo Site and was given a stick in the shape of an electric drill.

A teenage boy returns to his remote home island from the mainland. While people stopped wearing masks there, on the island the rules to wear masks outside at all times are still surprisingly strict. Could the reason be something different than corona?