Highschool of the Dead, Vol. 6

As the mall refugees grow restless, Takashi and his comrades make plans
to leave before Officer Asami's authority slides further and the group's
order is completely undone. Unfortunately, just as final preparations
for their departure are nearly complete, the mall's defenses are
breached, and "they" come streaming in. Asami joins the Fujimi High
students as they battle their way toward the exit, while the rest of the
group seeks refuge on the roof. Their fortress has become a trap - can
anyone hope to escape the mall of the dead?!