You never hear THAT in there...
Did you hear that?!
Focusing on both partner's Renge and Sabimaru, the mystery number five is about Hanako in the girl toilet. Renge been challenged to go investigate alone.
The mystery number six is about a boy that leapt through the time. Houtarou and Supana go to investigate and found Kajiki who also looking for same thing. When the boy appeared, everyone was shocked.
The mystery number seven which is the last one is about a vase that can does a cool thing. The Three Dark Sisters come to Houtarou and Rinne holding the mysterious vase. To get it, there must fight in Gotcha Quiz Competition.