Yui just tells her to hurry on inside before Ben comes back. Meanwhile, Misuzu is trying to reach Takuma's phone but only got an answering service. Ben says she can't call him since it's out of range. "The tunnel is 10 meters under the ground." Misuzu: "Geez! What is more important? Me or amber?!" Yoshida (slightly drunk): "Whichever. If you polish both, it'll shine." Misuzu glares at him. "Areh? It was meant as a compliment." Back in the tunnel, Aki asks what Takuma is doing. He says, "Digging a hole. You see, the formation of the amber is along this coast" pointing at the wall, "and extends straight southwards. So if I keep digging here, I'm supposed to reach Miyako. From there, Yui and I will ride a train in Miyako and go to Tokyo." Aki is silent, not really sure what to say to that. Finally Yui says, "He's kidding." At last, she and Takuma explain. Aramaki Taichi is apparently going to build two theaters: the first one already in progress in Ueno (being the gateway to Eastern Japan); and the second to be built soon in Shinagawa (the gateway to Western Japan). In an attempt to nurture promising idols and to present them in these venues, he has sent scouts all over Japan, to find these idols in each of the 47 prefectures, and form one big national idol group. This is his so-called "GMT47" plan, with GMT a pun for "Jimote", meaning 'local'.