The story centers around Nyarlko, a formless Cthulhu deity who can take on the shape of anyone it wishes, but particularly the shape of a seemingly ordinary silver-haired girl. Mahiro Yasaka is a normal high school student who is chased by aliens one night, until "Nyarlko" saves him. (Source: ANN)

Beast+ continues from where Beast left off, though it is marketed as a stand-alone series. Episodes are reduced to approximately ten minutes in length, airing in the thirty minute time-slot Oha Coliseum alongside the Saru Getchu anime. Beast+ consists of a string of arcs beginning with the appearance of the Professor and Zero (both from Mega Man Network Transmission).

For the 73rd class of cadets of the Defense University of the small planet Kibi, a shakedown cruise on the fleet's new starship "Amaterasu" is a fitting lead-up to graduation. As they are returning to their home planet, however, they are shocked to hear news of a declaration of war by the aggressive Kingdom against Kibi. When their planetary government surrenders without a struggle, the cadets decide to launch their own war, aboard the "Amaterasu". To gain funding, they make a deal with a galactic news network - and find themselves the "stars" of their own "reality show". Unfortunately, this is the kind of reality show that can get you killed... (Source: ANN)

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.