Monthly Girls' Nozaki-kun, Vol. 13

In the world of Nozaki and friends, pandemonium reigns supreme. While searching for
the owner of a rather-unique-book, Hori stumbles across a shocking secret! At the
same time, the life and times of Sakiko Yumeno are revealed online...And what-s this?
Might Wakamatsu actually be able to stay awake the next time Seo sings?! But all of
that pales in comparison when the true agent of chaos, Kashima, introduces a new
partner-in-crime who wreaks havoc wherever they go...