Shuten Doji: The Star Hand Kid [Anime OVA Series]  (1989)

Theatrical Release Information:
Shuten Doji: The Star Hand Kid [Anime OVA Series]

Jiro has a secret he's keeping from his girlfriend, Miyuki, and while he'd like to keep it from her forever, he won't have a choice about revealing his true self when he has to rescue her from a kidnapping by some nasty creatures. The problem is that Jiro has just recently noticed that he is growing horns. It would seem that the feeling of being "different" that Jiro has always had wasn't just his imagination; he isn't human! Saving Miyuki will reveal Jiro's true heritage, whether he's ready to confront it or not, and in the process he will have to accept both the good and the bad. While his fierceness as a warrior is more than he ever dreamed of as a high school student, his new self might leave him too different to return to his former life. ~ Cammila Albertson, All Movie Guide