Purple Eyes in the Dark

Yami no Purple Eye

Based on a shoujo manga written and illustrated by Shinohara Chie serialised in Shoujo Comic. The original story follows the struggles of a teenage girl after she finds herself turning into a lycanthropy-leopard and having to battle her newly found predatory instincts. In 1987 an animated music video of 30 minutes length was made based on the award winning manga. (Source: AniDB)