Itsukasei Metsubou Syndrome

is a japanese 4-koma manga series written by Yasu. It began serialisation in the March 2006 issue of Manga Time Kirara.

The series was released under 2 volumes from June 2007 to August 2008.

Synopsis
They say the world is going to end in five days. Now what to do until then? Follow Fuji, Touko and Nitaka on their last school days preparing for the end of the world. Meanwhile, Niino, a clumsy devil, announces that she’s going to destroy the world in five days from now. The hilarious chaos is complete now.

(Source: MU)