Ryūji and Taiga stay up all night, still unsure of what had occurred the night before. Yūsaku and Ami both eventually agree to assist Ryūji and Taiga with a plan to terrify Minori. After the five of them have a breakfast picnic at the beach, they take a walk through a hidden cave filled with traps, though Ryūji and Ami perceive these traps as pathetic use of tofu and ketchup. Ryūji and Ami later witness as Minori, Yūsaku and Taiga each momentarily disappear at the end of the cave. However, it turns out that Minori and Yūsaku were playing a trick on Ryūji and Taiga, and that they were the ones who put the strands of hair and dress covered in seaweed in the bedrooms. Minori was fully aware of what Ryūji and Taiga were up to, but she appreciates them for giving her a thrill. Ryūji and Minori tell each other that they wanted to make the other believe that ghosts are real.