Lady Bat

Lady Bat is a villain from Mermaid Melody Pichi Pichi Pure who first appears in episode 9. She is a servant of Mikeru and, despite open chest area looking flat, looks and clothing are actually is a female. Her main attack is "Ankoku no Tsubasa", a song which can send her enemies in a state of deep slumber. Also, Lady Bat is vampire (with sharp fangs, pointy ears and bat like wings) but, instead of sucking blood, she sucks memories by kissing her victim. She, along the Black Beauty Sisters, Lanhua and Alala, meets her end at the hands of Mikeru, who no longer needs his servants and thus absorbs and kills them.