这张原声带伴随一个虚构游戏叙事而生，收录了部分未采用的概念曲目。故事设定在2036年，病毒爆发后的第十年。在Kyoto的废墟中，小队队长Kumoma失去了所有队友，却因变异觉醒了超高速能力。三个月后，队友们痛苦的脑波突然在他脑海中回响：他们被困在废墟深处，正在缓慢变异。Kumoma违抗上级命令，独自返回死亡区，营救那些失踪的前队友。This soundtrack is designed for an imagined game narrative and features unused concept tracks. The story is set in 2036, the tenth year after a viral outbreak. In the ruins of Kyoto, squad leader Kumoma loses all his teammates, but awakens to super-speed abilities due to mutation. Three months later, his teammates' distress brainwaves suddenly echo in his mind: they are trapped deep within the ruins, slowly mutating. Defying his superiors' orders, Kumoma returns alone to the dead zone to rescue his missing former teammates.