During the company trip, the strange couple at the restaurant is surprisingly following them, confirming that they are employees of TEN2. At the hot spring, they meet Kyouka's younger sister Kyouko, and her friends from high school Hinata Takaragawa and Mamori Sonazawa. While stripping, Tokine gets transported back to Quizzun with her dearest friends, to face not a riddle, but a dragon.