インフェクション

Haruki Amamiya, an utterly ordinary high schooler, is shut in a storage room as a prank alongside Kirara Isonami, a girl who happened to be inside. The two spend three days trapped before they break out, only to find the world transformed: an unknown virus has begun turning people into flesh-eating undead known as carriers. From the minutes before the first recorded case onward, Haruki and a handful of other young survivors scrape their way through a Japan the outbreak took apart.