Little Devil Girlfriend

A DVD is rumored to place a curse on its viewers, a tale many dismiss but few are willing to test. Akuno Mika watches it and is transformed into a succubus. She attempts to conceal her new nature, but her control falters when near Kazuya, the object of her affection. In a separate incident, Kana is persuaded by two friends to view the DVD. The curse manifests by causing her to grow an appendage not typical for women. Her sister Mai intervenes to assist in reversing the condition, though their efforts lead to unexpected and extensive complications.