At her farewell survival game, Sonora displays her overwhelming strength again, even up against Karila, Honoka, Rento, and Yachiyo all at once. Sonora is just removing her goggles, thinking her last game in Japan ended too soon, when she turns around to find Yura holding a gun. C³ welcomes Yura back home with joy and laughter, and Sonora puts her goggles back on to face Yura one-on-one. How will the battle between the improved Yura and the very serious Sonora end?!