Slasher Maidens, Vol. 3

With the academy is under attack by the cult known as the Ultra
Reincarnation Party,
the maidens head to the vault to arm themselves with
their mementos. But what
awaits them there is their former teacher and spy
for the Ultra Reincarnation party,
Kawase-sensei! As a former maiden herself,
she wields terrifying power. Can Innami
and the others prevail?