Duwei is born into this new world from Earth without a sound, he does not cry, he simply stares at the people around him. As he grows he does not speak and curses this new world he was forced into. His Father a Great General is sure there must be something he has an aptitude for, however he is simply trash. Disregarded by his family as the Retarded heir. This is the story of his journey to discover the truths of this world and use the knowledge of his past life to remove his title of retard, even if he has to become a devil.

A deadly virus known as "Algernon" has attacked humanity with vicious meaning. At the forefront of the battle is the mystifying Akamatsu Industries—disguised as a heavy machine factory in Tokyo, this undercover organization uses neural enhanced weapons known as NeuroNoids to battle Algernon. Also helping with their secret efforts is the mysterious mutant who is only known as "Betterman." (Source: ANN)

Nurarihyon no Mago Recaps.

A crossover television anime featuring chibi renditions of characters from , , , , , and additional Key franchises to be revealed at a later date. (Source: MAL News)