With the help of the residents, Yukio's repairs are complete, and he returns to the battlefield as "Snowball Rampart," with an enhanced right arm! The rematch against his arch-nemesis, Hercules, begins. With Sagami seeing through all of Tetsuo and his allies' attacks, they search for a way to turn the tables! The battle between "Mishima Mall" and "E-RDE's Light (Vierde)" reaches its climax!

Touched by Tetsuo's pure feelings, Sagami begins to lose his will to fight. Yuma rushes to the scene, strongly rejecting Sagami's self-deprecating attitude and shouting out her feelings for him. Then, the tragic past of Sagami and the "E-RDE's Light (Vierde)" who survived the despair of the Great Freeze is revealed. What did they find at the end of the deadly blizzard?!