Ranto, Jinpei and others decided to thoroughly scout Nayu's movements because they wanted solid evidence that Nayu was possessed by aliens. However, Nayu does not look strange at all. On the contrary, trying on a dress at a clothing store or looking for a four-leaf clover in the meadow. And, it is a maiden too much. If an alien had taken over her body, there must have been a time when she had changed like a different person. With that in mind, Ranto visits the Justice Hackers Study Group to hack the school's servers that manage the data of all students. However, there are only girls in the club room.