With the Kakuseijin out of gas, Keita asks Hinoki if she would go on a date with him and she said yes. Meanwhile, the team was able to figure out that the things that are happening so far do have something in common, and it was Dr. Umezaki. Back to the date, they went to a noodle house, and then they looked at some caves. The caves did something to Hinoki so she decided to leave. The two went to Hinoki's old house where Keita finally makes his move. But before he could finally do it, a strange man appears. Who is this man? What did the caves do to Hinoki? And what will the team do now that they now Dr. Umezaki is connected to the strange things that are happening around them?