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).

Sometime in the distant future, mankind is forced to live in domed cities while the rest of the world is left to recover from years of environmental hardships. In the Siberian Dome-polis, professional gamer Gainer Sanga and mercenary Gain Bijou commandeer an Overman and lead a mass exodus out of the city.

After two-month-old kitten Chibi-neko is abandoned by her former owners, she is found by 18-year-old Tokio. Although his mother is allergic to cats and has a great fear of them, she agrees to let him keep the kitten because she fears he is becoming too withdrawn after failing his university entrance exams. Chibi-neko soon falls in love with Tokio. In her own mind, Chibi-neko is a small human who speaks in human words, although people only ever seem to hear her meow, and she believes that all humans were once kittens like her. A stray cat tells Chibi-neko of a paradise called Cottonland, where dreams can come true.

Episodes 4-6 of the Soukyuu no Fafner: Dead Aggressor - The Beyond series.