Otogi-Jūshi Akazukin (おとぎ銃士 赤ずきん?, lit.
Fairy Musketeers Little Red Riding Hood) is an anime OVA as well as an anime television series.
Long, long ago, there existed a world of magic and science. But having both powers was making people conceited and lazy. So God split the world in to the world of science,
Elde(or the Earth), and the world of magic,
Phandavale. One day in Fandavale, a terrible witch named Cendrillon revives. Cendrillon plots to rule both worlds, and searches for the "key of Elde" and the "key of Phandavale" which holds tremendous power.
A young boy from
Elde by the name of Sōta meets a mysterious girl from
Phandavale, Akazukin (Red Riding Hood), and her talking wolf companion, Val. Sōta learns that he is the key of Elde. Now it is up to Akazukin, Val, and the other Musketeers, Shirayukihime (Snow White)and Ibara (Sleeping Beauty) to protect Sōta from Cendrillon and her Nightmarians who wish to obtain the power he mysteriously possesses.
Differences exist between the OVA and the television series due to length. For example, Shirayukihime (Snow White) only appears at the end of the OVA, and Ibarahime (Sleeping Beauty) only being mentioned in passing in the OVA.
Another difference is the darker feel in the OVA. The majority of the enemies in the OVA are wolves of the same race as Val, but ones who have chosen to serve Cendrillon, and have undergone transformations as a result. In addition to having hybrid forms, such as wolves crossed with spiders or bats, they seem be to undead, being little more than a wolf pelt draped over a shadow. Each has a large ring in their torso to which the edges of their pelt is attached, with nothing visible inside.
Source:
Wikipedia 
