The storyline is so random and vague, it totally rocks.

Here’s why it rocks:
1. Chainsaws are cool, although dumb weapons. A mysterious man armed with this ups the fun.
2. A beautiful girl, Yukisaki Eri who battles the above said doubles the fun. What more can you ask for in a battle between the two, full of pantyshots mixed with violence?
3. The original story’s done by the guy behind NHK ni Youkoso, Takimoto Tatsuhiko. His first novel, to be exact.