Saitama Chainsaw Shoujo

Kirisaki Fumio's just an ordinary highschool girl in love...

...but then she finds out that the guy she's fallen for happens to like someone else.

And then she gets into a fight with a friend... that and various other things are getting her really down...

...so she decides to go out and get a chainsaw.

And take it to school.

And kill the boy she likes, and herself afterwards.

Along with anyone who happens to get in the way.