Young Gun Carnaval
26/01/2013 Update
From AnimeSigma:
High school student Jinpachi Kogure is a member of the manga club and is no good with women. Yumika Testuyoshi is a troubled female high school student who's always skipping school and searching for a girl she doesn't hate. However, these two are in reality young masters of the art of killing people: "Young Guns"----!