During the holiday season, a young man encounters a drunken cat belonging to an old man in an alley. The old man has trained his three cats to sing.

Yohko Mono is a regular girl making her way through high school--until she learns that she is the 108th successor to a line of warriors charged with defending the earth against demons. Eventually she must fight her ultimate battle against the demon who started it all.

The first 45 minutes is a recap of the original series and the remaining 40 minutes has a new story. Two months after Creamy Mami's final concert, rumors began to spread that Mami was making a come back, and if that wasn't surprising enough, Tachibana starts a "Project M" and that seems to have something to do with Mami's come back. As word of Mami's concert reaches the public, Yuu dosen't belive it. Yuu, Megumi, Toshio, Midori, Kidokoro make a plan to get to the bottom of it.

Animated Flash shorts based on the light novel series "Haiyore! Nyaruko-san." In these shorts, Nyarlko, an anthropomorphized female version of Nyarlathotep from the Cthulhu Mythos, is constantly being told off by Mahiro, a normal human boy, for all the crazy or stupid things she does. In one of the shorts, Nyarlko is drawing a cover design for a body pillow. It turns out that the pillow's subject is a half-dressed Mahiro in what appears to be a hot and heavy scene with Nyarlko. Naturally, Mahiro proceeds to stab Nyarlko in the hand with a fork and threatens to kill her if she releases the pillow design. Other shorts revolve around various gags and occasionally feature Cthuko, an anthropomorphized female version of Cthugha, who's madly in love with Nyarlko.