Otogi-Jushi Akazukin OVA

Synopsis:

After Souta finds an injured 'dog' near the well outside his home, he suddenly finds himself being attacked by a monster which has been constantly chasing him in his dreams. Fortunately, just like in his dream, a girl in a red helmet and weird clothes comes to his rescue. Her name is Akazukin, and she has come to Souta's world along with the 'dog' (who is actually a talking wolf called Val) in order to find and protect the one known as 'Erde's Key' from the forces of the evil Cendrillon. But when Souta's friend Ringo is kidnapped by Cendrillon's minions, will Akazukin be able to save her alone?