In the heart of bustling Tokyo, a catastrophic 8.1 magnitude earthquake strikes, shattering the city's foundation. Among the chaos is Jin Mishima, a 21-year-old college senior, and his eccentric gothic lolita friend Nanako Okano. As they navigate the post-disaster landscape of a lawless and perilous Tokyo, where survival is uncertain and unity is vital, they must confront the harsh realities of a society on the brink of collapse.