The Flowing Water Reunion. Muetta and Mirasa arrive at Kurobe Dam using atmospheric entry suits. Yukina, Mika, Jundai, Carlos and Ryoto travel to search for a location to film Mika's cosplay fan video. Mika has also invited Marina along to lift her spirits after she tenders her resignation due to Muetta's attack at the school's cultural festival. Graham begins trial simulations on single-seater GAUS units to increase their capacity to deal with enemy geoframes, with mixed success for each member of the GAUS crew. With Sophie departing for France soon, Kennosuke has a conversation with her about freedom and loyalty. Muetta and Mirasa gain entry inside the United Nations Kurobe Laboratory and disguise themselves as miners. They capture Kennosuke, who still believes that Muetta is Yukihime, but Muetta denies knowing him. They find the excavation site with the final fragmants of the Pivot Stone. Confronted by the defense forces, Kennosuke tries to defend Muetta. However, Sophie says that he is foolish, and she vows to stay at the research facility. As they are about to leave, Mirasa stabs Muetta so that she can take sole credit for the discovery. Muetta jumps from the dam wall into the rushing waters below.