When does Paranoia Agent return?

Paranoia Agent is a Japanese anime television series. It is about a social phenomenon in Musashino, Tokyo caused by a juvenile serial assailant named Lil' Slugger. Tsukiko Sagi, a character designer who created the immensely popular pink dog Maromi, is allegedly the first victim of the attacks. At the end of the series, it is revealed that she had unconsciously created Lil' slugger.