The world outside the escape pod is covered in snow and ice, and devoid of life. Tetsuo sets off to find human survivors, his promise to Yukio on his mind. Riding an excavator that he finds in the ruins, he battles an intergalactic kaiju that attacks him, and it is then that he encounters the members of humankind who've survived! Can Tetsuo finally make the "friends" that he's always longed for?

Tetsuo and Yukio cross the snowfields and head towards Ao's base, "Mishima Mall." Tetsuo receives a warm welcome from the survivors as a "savior," and through his interactions with Ao and Takimura, he experiences the warmth of civilization and human connection he hasn't felt in a long time. But why is this place the only warm place in this freezing world? The secret of "a certain entity" that saved the mall is about to be revealed!