Tesagure! Bukatsu-mono

Name: Tesagure! Bukatsu-mono
Genre: Comedy, Animation
Released: 2013
Rating: 7.5
Cast: Asuka Nishi, Satomi Akesaka, Karin Ogino, Ayaka Ohashi, Reina Ueda

The ultimate fourth wall breaking ad-lib meta anime. Four high school girls spend time chatting about extracurricular activities and gradually the line between the voice actress and characters are not so clear.