Eiko and Nanami have struck an alliance, but opposing forces conspire to break them apart. Can they endure the enemy salvo, or will their truce collapse under the onslaught?

While Kabe engages an old rival in a rematch, Eiko marches headlong into battle against her own inner adversary, and Kongming recalls peaceful days past.

The climactic final battle is upon us! With Summer Sonia on the line, Kongming must devise the ultimate stratagem to bring about total victory and secure 100,000 likes.

It all comes down Kongming’s final gambit. Eiko will take to the stage in a direct confrontation with her friend-turned-rival, but will Nanami hear the song in Eiko’s heart?